/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_9.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 05:07:14,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 05:07:14,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 05:07:14,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 05:07:14,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 05:07:14,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 05:07:14,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 05:07:14,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 05:07:14,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 05:07:14,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 05:07:14,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 05:07:14,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 05:07:14,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 05:07:14,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 05:07:14,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 05:07:14,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 05:07:14,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 05:07:14,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 05:07:14,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 05:07:14,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 05:07:14,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 05:07:14,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 05:07:14,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 05:07:14,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 05:07:14,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 05:07:14,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 05:07:14,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 05:07:14,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 05:07:14,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 05:07:14,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 05:07:14,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 05:07:14,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 05:07:14,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 05:07:14,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 05:07:14,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 05:07:14,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 05:07:14,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 05:07:14,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 05:07:14,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 05:07:14,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 05:07:14,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 05:07:14,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 05:07:14,786 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 05:07:14,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 05:07:14,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 05:07:14,794 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 05:07:14,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 05:07:14,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 05:07:14,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 05:07:14,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 05:07:14,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 05:07:14,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 05:07:14,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 05:07:14,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 05:07:14,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 05:07:14,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 05:07:14,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 05:07:14,798 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 05:07:14,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 05:07:14,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 05:07:14,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 05:07:14,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 05:07:14,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 05:07:14,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 05:07:14,800 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 05:07:15,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 05:07:15,088 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 05:07:15,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 05:07:15,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 05:07:15,093 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 05:07:15,094 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_9.c [2020-07-18 05:07:15,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f026746cd/bf084781527544b48eec94c2e0fbcc2d/FLAGd5912053d [2020-07-18 05:07:15,607 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 05:07:15,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_9.c [2020-07-18 05:07:15,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f026746cd/bf084781527544b48eec94c2e0fbcc2d/FLAGd5912053d [2020-07-18 05:07:16,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f026746cd/bf084781527544b48eec94c2e0fbcc2d [2020-07-18 05:07:16,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 05:07:16,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 05:07:16,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 05:07:16,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 05:07:16,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 05:07:16,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106af91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16, skipping insertion in model container [2020-07-18 05:07:16,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 05:07:16,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 05:07:16,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 05:07:16,365 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 05:07:16,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 05:07:16,442 INFO L208 MainTranslator]: Completed translation [2020-07-18 05:07:16,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16 WrapperNode [2020-07-18 05:07:16,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 05:07:16,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 05:07:16,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 05:07:16,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 05:07:16,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (1/1) ... [2020-07-18 05:07:16,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 05:07:16,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 05:07:16,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 05:07:16,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 05:07:16,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 05:07:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 05:07:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 05:07:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 05:07:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 05:07:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 05:07:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 05:07:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 05:07:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 05:07:17,174 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 05:07:17,174 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 05:07:17,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 05:07:17 BoogieIcfgContainer [2020-07-18 05:07:17,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 05:07:17,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 05:07:17,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 05:07:17,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 05:07:17,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 05:07:16" (1/3) ... [2020-07-18 05:07:17,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ab712f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 05:07:17, skipping insertion in model container [2020-07-18 05:07:17,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:07:16" (2/3) ... [2020-07-18 05:07:17,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ab712f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 05:07:17, skipping insertion in model container [2020-07-18 05:07:17,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 05:07:17" (3/3) ... [2020-07-18 05:07:17,189 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2020-07-18 05:07:17,200 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 05:07:17,208 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 05:07:17,223 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 05:07:17,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 05:07:17,246 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 05:07:17,246 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 05:07:17,246 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 05:07:17,247 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 05:07:17,247 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 05:07:17,247 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 05:07:17,247 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 05:07:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-07-18 05:07:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-18 05:07:17,278 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:17,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:17,280 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:17,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:17,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1511648252, now seen corresponding path program 1 times [2020-07-18 05:07:17,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:17,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821439960] [2020-07-18 05:07:17,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:17,548 INFO L280 TraceCheckUtils]: 0: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-18 05:07:17,548 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-18 05:07:17,550 INFO L263 TraceCheckUtils]: 0: Hoare triple {111#true} call ULTIMATE.init(); {111#true} is VALID [2020-07-18 05:07:17,551 INFO L280 TraceCheckUtils]: 1: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-18 05:07:17,552 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-18 05:07:17,552 INFO L263 TraceCheckUtils]: 3: Hoare triple {111#true} call #t~ret10 := main(); {111#true} is VALID [2020-07-18 05:07:17,552 INFO L280 TraceCheckUtils]: 4: Hoare triple {111#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,553 INFO L280 TraceCheckUtils]: 5: Hoare triple {111#true} ~p1~0 := #t~nondet0; {111#true} is VALID [2020-07-18 05:07:17,553 INFO L280 TraceCheckUtils]: 6: Hoare triple {111#true} havoc #t~nondet0; {111#true} is VALID [2020-07-18 05:07:17,554 INFO L280 TraceCheckUtils]: 7: Hoare triple {111#true} havoc ~lk1~0; {111#true} is VALID [2020-07-18 05:07:17,554 INFO L280 TraceCheckUtils]: 8: Hoare triple {111#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,555 INFO L280 TraceCheckUtils]: 9: Hoare triple {111#true} ~p2~0 := #t~nondet1; {111#true} is VALID [2020-07-18 05:07:17,555 INFO L280 TraceCheckUtils]: 10: Hoare triple {111#true} havoc #t~nondet1; {111#true} is VALID [2020-07-18 05:07:17,555 INFO L280 TraceCheckUtils]: 11: Hoare triple {111#true} havoc ~lk2~0; {111#true} is VALID [2020-07-18 05:07:17,556 INFO L280 TraceCheckUtils]: 12: Hoare triple {111#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,556 INFO L280 TraceCheckUtils]: 13: Hoare triple {111#true} ~p3~0 := #t~nondet2; {111#true} is VALID [2020-07-18 05:07:17,556 INFO L280 TraceCheckUtils]: 14: Hoare triple {111#true} havoc #t~nondet2; {111#true} is VALID [2020-07-18 05:07:17,557 INFO L280 TraceCheckUtils]: 15: Hoare triple {111#true} havoc ~lk3~0; {111#true} is VALID [2020-07-18 05:07:17,557 INFO L280 TraceCheckUtils]: 16: Hoare triple {111#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,558 INFO L280 TraceCheckUtils]: 17: Hoare triple {111#true} ~p4~0 := #t~nondet3; {111#true} is VALID [2020-07-18 05:07:17,558 INFO L280 TraceCheckUtils]: 18: Hoare triple {111#true} havoc #t~nondet3; {111#true} is VALID [2020-07-18 05:07:17,558 INFO L280 TraceCheckUtils]: 19: Hoare triple {111#true} havoc ~lk4~0; {111#true} is VALID [2020-07-18 05:07:17,559 INFO L280 TraceCheckUtils]: 20: Hoare triple {111#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,559 INFO L280 TraceCheckUtils]: 21: Hoare triple {111#true} ~p5~0 := #t~nondet4; {111#true} is VALID [2020-07-18 05:07:17,560 INFO L280 TraceCheckUtils]: 22: Hoare triple {111#true} havoc #t~nondet4; {111#true} is VALID [2020-07-18 05:07:17,560 INFO L280 TraceCheckUtils]: 23: Hoare triple {111#true} havoc ~lk5~0; {111#true} is VALID [2020-07-18 05:07:17,560 INFO L280 TraceCheckUtils]: 24: Hoare triple {111#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,561 INFO L280 TraceCheckUtils]: 25: Hoare triple {111#true} ~p6~0 := #t~nondet5; {111#true} is VALID [2020-07-18 05:07:17,561 INFO L280 TraceCheckUtils]: 26: Hoare triple {111#true} havoc #t~nondet5; {111#true} is VALID [2020-07-18 05:07:17,561 INFO L280 TraceCheckUtils]: 27: Hoare triple {111#true} havoc ~lk6~0; {111#true} is VALID [2020-07-18 05:07:17,562 INFO L280 TraceCheckUtils]: 28: Hoare triple {111#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,562 INFO L280 TraceCheckUtils]: 29: Hoare triple {111#true} ~p7~0 := #t~nondet6; {111#true} is VALID [2020-07-18 05:07:17,563 INFO L280 TraceCheckUtils]: 30: Hoare triple {111#true} havoc #t~nondet6; {111#true} is VALID [2020-07-18 05:07:17,563 INFO L280 TraceCheckUtils]: 31: Hoare triple {111#true} havoc ~lk7~0; {111#true} is VALID [2020-07-18 05:07:17,563 INFO L280 TraceCheckUtils]: 32: Hoare triple {111#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,564 INFO L280 TraceCheckUtils]: 33: Hoare triple {111#true} ~p8~0 := #t~nondet7; {111#true} is VALID [2020-07-18 05:07:17,564 INFO L280 TraceCheckUtils]: 34: Hoare triple {111#true} havoc #t~nondet7; {111#true} is VALID [2020-07-18 05:07:17,565 INFO L280 TraceCheckUtils]: 35: Hoare triple {111#true} havoc ~lk8~0; {111#true} is VALID [2020-07-18 05:07:17,565 INFO L280 TraceCheckUtils]: 36: Hoare triple {111#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,565 INFO L280 TraceCheckUtils]: 37: Hoare triple {111#true} ~p9~0 := #t~nondet8; {111#true} is VALID [2020-07-18 05:07:17,566 INFO L280 TraceCheckUtils]: 38: Hoare triple {111#true} havoc #t~nondet8; {111#true} is VALID [2020-07-18 05:07:17,566 INFO L280 TraceCheckUtils]: 39: Hoare triple {111#true} havoc ~lk9~0; {111#true} is VALID [2020-07-18 05:07:17,566 INFO L280 TraceCheckUtils]: 40: Hoare triple {111#true} havoc ~cond~0; {111#true} is VALID [2020-07-18 05:07:17,567 INFO L280 TraceCheckUtils]: 41: Hoare triple {111#true} assume !false; {111#true} is VALID [2020-07-18 05:07:17,567 INFO L280 TraceCheckUtils]: 42: Hoare triple {111#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {111#true} is VALID [2020-07-18 05:07:17,568 INFO L280 TraceCheckUtils]: 43: Hoare triple {111#true} ~cond~0 := #t~nondet9; {111#true} is VALID [2020-07-18 05:07:17,568 INFO L280 TraceCheckUtils]: 44: Hoare triple {111#true} havoc #t~nondet9; {111#true} is VALID [2020-07-18 05:07:17,568 INFO L280 TraceCheckUtils]: 45: Hoare triple {111#true} assume !(0 == ~cond~0); {111#true} is VALID [2020-07-18 05:07:17,569 INFO L280 TraceCheckUtils]: 46: Hoare triple {111#true} ~lk1~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,569 INFO L280 TraceCheckUtils]: 47: Hoare triple {111#true} ~lk2~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,569 INFO L280 TraceCheckUtils]: 48: Hoare triple {111#true} ~lk3~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,570 INFO L280 TraceCheckUtils]: 49: Hoare triple {111#true} ~lk4~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,570 INFO L280 TraceCheckUtils]: 50: Hoare triple {111#true} ~lk5~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,570 INFO L280 TraceCheckUtils]: 51: Hoare triple {111#true} ~lk6~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,571 INFO L280 TraceCheckUtils]: 52: Hoare triple {111#true} ~lk7~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,571 INFO L280 TraceCheckUtils]: 53: Hoare triple {111#true} ~lk8~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,571 INFO L280 TraceCheckUtils]: 54: Hoare triple {111#true} ~lk9~0 := 0; {111#true} is VALID [2020-07-18 05:07:17,573 INFO L280 TraceCheckUtils]: 55: Hoare triple {111#true} assume !(0 != ~p1~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,576 INFO L280 TraceCheckUtils]: 56: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p2~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,578 INFO L280 TraceCheckUtils]: 57: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p3~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,579 INFO L280 TraceCheckUtils]: 58: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p4~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,580 INFO L280 TraceCheckUtils]: 59: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p5~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,582 INFO L280 TraceCheckUtils]: 60: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p6~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,584 INFO L280 TraceCheckUtils]: 61: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p7~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,585 INFO L280 TraceCheckUtils]: 62: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p8~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,586 INFO L280 TraceCheckUtils]: 63: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p9~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 05:07:17,587 INFO L280 TraceCheckUtils]: 64: Hoare triple {115#(= 0 main_~p1~0)} assume 0 != ~p1~0; {112#false} is VALID [2020-07-18 05:07:17,587 INFO L280 TraceCheckUtils]: 65: Hoare triple {112#false} assume 1 != ~lk1~0; {112#false} is VALID [2020-07-18 05:07:17,587 INFO L280 TraceCheckUtils]: 66: Hoare triple {112#false} assume !false; {112#false} is VALID [2020-07-18 05:07:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:17,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821439960] [2020-07-18 05:07:17,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:17,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:17,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555566755] [2020-07-18 05:07:17,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-18 05:07:17,618 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:17,622 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:17,724 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:17,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:17,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:17,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:17,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:17,737 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2020-07-18 05:07:18,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:18,243 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2020-07-18 05:07:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:18,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-18 05:07:18,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:18,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-18 05:07:18,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-18 05:07:18,276 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 322 transitions. [2020-07-18 05:07:18,677 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 322 edges. 322 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:18,711 INFO L225 Difference]: With dead ends: 235 [2020-07-18 05:07:18,711 INFO L226 Difference]: Without dead ends: 160 [2020-07-18 05:07:18,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-18 05:07:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-07-18 05:07:18,919 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:18,919 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 158 states. [2020-07-18 05:07:18,920 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 158 states. [2020-07-18 05:07:18,920 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 158 states. [2020-07-18 05:07:18,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:18,933 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-18 05:07:18,934 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-18 05:07:18,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:18,936 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:18,936 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 160 states. [2020-07-18 05:07:18,936 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 160 states. [2020-07-18 05:07:18,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:18,960 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-18 05:07:18,960 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-18 05:07:18,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:18,963 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:18,963 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:18,964 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:18,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-18 05:07:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2020-07-18 05:07:18,976 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 67 [2020-07-18 05:07:18,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:18,978 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2020-07-18 05:07:18,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:18,978 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 208 transitions. [2020-07-18 05:07:19,186 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:19,187 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2020-07-18 05:07:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-18 05:07:19,190 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:19,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:19,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 05:07:19,191 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:19,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:19,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1267771135, now seen corresponding path program 1 times [2020-07-18 05:07:19,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:19,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047021540] [2020-07-18 05:07:19,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:19,275 INFO L280 TraceCheckUtils]: 0: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-18 05:07:19,275 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-18 05:07:19,276 INFO L263 TraceCheckUtils]: 0: Hoare triple {1224#true} call ULTIMATE.init(); {1224#true} is VALID [2020-07-18 05:07:19,276 INFO L280 TraceCheckUtils]: 1: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-18 05:07:19,276 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-18 05:07:19,276 INFO L263 TraceCheckUtils]: 3: Hoare triple {1224#true} call #t~ret10 := main(); {1224#true} is VALID [2020-07-18 05:07:19,277 INFO L280 TraceCheckUtils]: 4: Hoare triple {1224#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,277 INFO L280 TraceCheckUtils]: 5: Hoare triple {1224#true} ~p1~0 := #t~nondet0; {1224#true} is VALID [2020-07-18 05:07:19,277 INFO L280 TraceCheckUtils]: 6: Hoare triple {1224#true} havoc #t~nondet0; {1224#true} is VALID [2020-07-18 05:07:19,278 INFO L280 TraceCheckUtils]: 7: Hoare triple {1224#true} havoc ~lk1~0; {1224#true} is VALID [2020-07-18 05:07:19,278 INFO L280 TraceCheckUtils]: 8: Hoare triple {1224#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,278 INFO L280 TraceCheckUtils]: 9: Hoare triple {1224#true} ~p2~0 := #t~nondet1; {1224#true} is VALID [2020-07-18 05:07:19,278 INFO L280 TraceCheckUtils]: 10: Hoare triple {1224#true} havoc #t~nondet1; {1224#true} is VALID [2020-07-18 05:07:19,279 INFO L280 TraceCheckUtils]: 11: Hoare triple {1224#true} havoc ~lk2~0; {1224#true} is VALID [2020-07-18 05:07:19,279 INFO L280 TraceCheckUtils]: 12: Hoare triple {1224#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,279 INFO L280 TraceCheckUtils]: 13: Hoare triple {1224#true} ~p3~0 := #t~nondet2; {1224#true} is VALID [2020-07-18 05:07:19,280 INFO L280 TraceCheckUtils]: 14: Hoare triple {1224#true} havoc #t~nondet2; {1224#true} is VALID [2020-07-18 05:07:19,280 INFO L280 TraceCheckUtils]: 15: Hoare triple {1224#true} havoc ~lk3~0; {1224#true} is VALID [2020-07-18 05:07:19,280 INFO L280 TraceCheckUtils]: 16: Hoare triple {1224#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,280 INFO L280 TraceCheckUtils]: 17: Hoare triple {1224#true} ~p4~0 := #t~nondet3; {1224#true} is VALID [2020-07-18 05:07:19,281 INFO L280 TraceCheckUtils]: 18: Hoare triple {1224#true} havoc #t~nondet3; {1224#true} is VALID [2020-07-18 05:07:19,281 INFO L280 TraceCheckUtils]: 19: Hoare triple {1224#true} havoc ~lk4~0; {1224#true} is VALID [2020-07-18 05:07:19,281 INFO L280 TraceCheckUtils]: 20: Hoare triple {1224#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,282 INFO L280 TraceCheckUtils]: 21: Hoare triple {1224#true} ~p5~0 := #t~nondet4; {1224#true} is VALID [2020-07-18 05:07:19,282 INFO L280 TraceCheckUtils]: 22: Hoare triple {1224#true} havoc #t~nondet4; {1224#true} is VALID [2020-07-18 05:07:19,282 INFO L280 TraceCheckUtils]: 23: Hoare triple {1224#true} havoc ~lk5~0; {1224#true} is VALID [2020-07-18 05:07:19,283 INFO L280 TraceCheckUtils]: 24: Hoare triple {1224#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,283 INFO L280 TraceCheckUtils]: 25: Hoare triple {1224#true} ~p6~0 := #t~nondet5; {1224#true} is VALID [2020-07-18 05:07:19,283 INFO L280 TraceCheckUtils]: 26: Hoare triple {1224#true} havoc #t~nondet5; {1224#true} is VALID [2020-07-18 05:07:19,283 INFO L280 TraceCheckUtils]: 27: Hoare triple {1224#true} havoc ~lk6~0; {1224#true} is VALID [2020-07-18 05:07:19,284 INFO L280 TraceCheckUtils]: 28: Hoare triple {1224#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,284 INFO L280 TraceCheckUtils]: 29: Hoare triple {1224#true} ~p7~0 := #t~nondet6; {1224#true} is VALID [2020-07-18 05:07:19,284 INFO L280 TraceCheckUtils]: 30: Hoare triple {1224#true} havoc #t~nondet6; {1224#true} is VALID [2020-07-18 05:07:19,285 INFO L280 TraceCheckUtils]: 31: Hoare triple {1224#true} havoc ~lk7~0; {1224#true} is VALID [2020-07-18 05:07:19,285 INFO L280 TraceCheckUtils]: 32: Hoare triple {1224#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,285 INFO L280 TraceCheckUtils]: 33: Hoare triple {1224#true} ~p8~0 := #t~nondet7; {1224#true} is VALID [2020-07-18 05:07:19,285 INFO L280 TraceCheckUtils]: 34: Hoare triple {1224#true} havoc #t~nondet7; {1224#true} is VALID [2020-07-18 05:07:19,286 INFO L280 TraceCheckUtils]: 35: Hoare triple {1224#true} havoc ~lk8~0; {1224#true} is VALID [2020-07-18 05:07:19,286 INFO L280 TraceCheckUtils]: 36: Hoare triple {1224#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,286 INFO L280 TraceCheckUtils]: 37: Hoare triple {1224#true} ~p9~0 := #t~nondet8; {1224#true} is VALID [2020-07-18 05:07:19,287 INFO L280 TraceCheckUtils]: 38: Hoare triple {1224#true} havoc #t~nondet8; {1224#true} is VALID [2020-07-18 05:07:19,287 INFO L280 TraceCheckUtils]: 39: Hoare triple {1224#true} havoc ~lk9~0; {1224#true} is VALID [2020-07-18 05:07:19,287 INFO L280 TraceCheckUtils]: 40: Hoare triple {1224#true} havoc ~cond~0; {1224#true} is VALID [2020-07-18 05:07:19,288 INFO L280 TraceCheckUtils]: 41: Hoare triple {1224#true} assume !false; {1224#true} is VALID [2020-07-18 05:07:19,288 INFO L280 TraceCheckUtils]: 42: Hoare triple {1224#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {1224#true} is VALID [2020-07-18 05:07:19,288 INFO L280 TraceCheckUtils]: 43: Hoare triple {1224#true} ~cond~0 := #t~nondet9; {1224#true} is VALID [2020-07-18 05:07:19,288 INFO L280 TraceCheckUtils]: 44: Hoare triple {1224#true} havoc #t~nondet9; {1224#true} is VALID [2020-07-18 05:07:19,289 INFO L280 TraceCheckUtils]: 45: Hoare triple {1224#true} assume !(0 == ~cond~0); {1224#true} is VALID [2020-07-18 05:07:19,289 INFO L280 TraceCheckUtils]: 46: Hoare triple {1224#true} ~lk1~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,289 INFO L280 TraceCheckUtils]: 47: Hoare triple {1224#true} ~lk2~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,290 INFO L280 TraceCheckUtils]: 48: Hoare triple {1224#true} ~lk3~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,290 INFO L280 TraceCheckUtils]: 49: Hoare triple {1224#true} ~lk4~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,290 INFO L280 TraceCheckUtils]: 50: Hoare triple {1224#true} ~lk5~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,290 INFO L280 TraceCheckUtils]: 51: Hoare triple {1224#true} ~lk6~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,291 INFO L280 TraceCheckUtils]: 52: Hoare triple {1224#true} ~lk7~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,291 INFO L280 TraceCheckUtils]: 53: Hoare triple {1224#true} ~lk8~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,291 INFO L280 TraceCheckUtils]: 54: Hoare triple {1224#true} ~lk9~0 := 0; {1224#true} is VALID [2020-07-18 05:07:19,292 INFO L280 TraceCheckUtils]: 55: Hoare triple {1224#true} assume 0 != ~p1~0; {1224#true} is VALID [2020-07-18 05:07:19,293 INFO L280 TraceCheckUtils]: 56: Hoare triple {1224#true} ~lk1~0 := 1; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,295 INFO L280 TraceCheckUtils]: 57: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p2~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,297 INFO L280 TraceCheckUtils]: 58: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p3~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,299 INFO L280 TraceCheckUtils]: 59: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p4~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,301 INFO L280 TraceCheckUtils]: 60: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p5~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,302 INFO L280 TraceCheckUtils]: 61: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p6~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,303 INFO L280 TraceCheckUtils]: 62: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p7~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,303 INFO L280 TraceCheckUtils]: 63: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p8~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,304 INFO L280 TraceCheckUtils]: 64: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p9~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,305 INFO L280 TraceCheckUtils]: 65: Hoare triple {1228#(= 1 main_~lk1~0)} assume 0 != ~p1~0; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 05:07:19,305 INFO L280 TraceCheckUtils]: 66: Hoare triple {1228#(= 1 main_~lk1~0)} assume 1 != ~lk1~0; {1225#false} is VALID [2020-07-18 05:07:19,306 INFO L280 TraceCheckUtils]: 67: Hoare triple {1225#false} assume !false; {1225#false} is VALID [2020-07-18 05:07:19,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:19,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047021540] [2020-07-18 05:07:19,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:19,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:19,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680039954] [2020-07-18 05:07:19,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-18 05:07:19,316 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:19,316 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:19,381 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:19,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:19,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:19,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:19,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:19,383 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 3 states. [2020-07-18 05:07:19,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:19,785 INFO L93 Difference]: Finished difference Result 192 states and 256 transitions. [2020-07-18 05:07:19,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:19,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-18 05:07:19,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:19,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-18 05:07:19,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-18 05:07:19,799 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 201 transitions. [2020-07-18 05:07:20,000 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:20,007 INFO L225 Difference]: With dead ends: 192 [2020-07-18 05:07:20,008 INFO L226 Difference]: Without dead ends: 190 [2020-07-18 05:07:20,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-07-18 05:07:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 158. [2020-07-18 05:07:20,126 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:20,126 INFO L82 GeneralOperation]: Start isEquivalent. First operand 190 states. Second operand 158 states. [2020-07-18 05:07:20,126 INFO L74 IsIncluded]: Start isIncluded. First operand 190 states. Second operand 158 states. [2020-07-18 05:07:20,126 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 158 states. [2020-07-18 05:07:20,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:20,143 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-18 05:07:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-18 05:07:20,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:20,153 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:20,153 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 190 states. [2020-07-18 05:07:20,154 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 190 states. [2020-07-18 05:07:20,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:20,170 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-18 05:07:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-18 05:07:20,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:20,171 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:20,171 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:20,172 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-18 05:07:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2020-07-18 05:07:20,182 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 68 [2020-07-18 05:07:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:20,185 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2020-07-18 05:07:20,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:20,185 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 207 transitions. [2020-07-18 05:07:20,424 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 207 edges. 207 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:20,424 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2020-07-18 05:07:20,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-18 05:07:20,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:20,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:20,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 05:07:20,428 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:20,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:20,429 INFO L82 PathProgramCache]: Analyzing trace with hash -383300170, now seen corresponding path program 1 times [2020-07-18 05:07:20,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:20,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1591747487] [2020-07-18 05:07:20,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:20,505 INFO L280 TraceCheckUtils]: 0: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-18 05:07:20,506 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-18 05:07:20,506 INFO L263 TraceCheckUtils]: 0: Hoare triple {2311#true} call ULTIMATE.init(); {2311#true} is VALID [2020-07-18 05:07:20,506 INFO L280 TraceCheckUtils]: 1: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-18 05:07:20,507 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-18 05:07:20,507 INFO L263 TraceCheckUtils]: 3: Hoare triple {2311#true} call #t~ret10 := main(); {2311#true} is VALID [2020-07-18 05:07:20,507 INFO L280 TraceCheckUtils]: 4: Hoare triple {2311#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,507 INFO L280 TraceCheckUtils]: 5: Hoare triple {2311#true} ~p1~0 := #t~nondet0; {2311#true} is VALID [2020-07-18 05:07:20,508 INFO L280 TraceCheckUtils]: 6: Hoare triple {2311#true} havoc #t~nondet0; {2311#true} is VALID [2020-07-18 05:07:20,508 INFO L280 TraceCheckUtils]: 7: Hoare triple {2311#true} havoc ~lk1~0; {2311#true} is VALID [2020-07-18 05:07:20,508 INFO L280 TraceCheckUtils]: 8: Hoare triple {2311#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,508 INFO L280 TraceCheckUtils]: 9: Hoare triple {2311#true} ~p2~0 := #t~nondet1; {2311#true} is VALID [2020-07-18 05:07:20,517 INFO L280 TraceCheckUtils]: 10: Hoare triple {2311#true} havoc #t~nondet1; {2311#true} is VALID [2020-07-18 05:07:20,517 INFO L280 TraceCheckUtils]: 11: Hoare triple {2311#true} havoc ~lk2~0; {2311#true} is VALID [2020-07-18 05:07:20,517 INFO L280 TraceCheckUtils]: 12: Hoare triple {2311#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,518 INFO L280 TraceCheckUtils]: 13: Hoare triple {2311#true} ~p3~0 := #t~nondet2; {2311#true} is VALID [2020-07-18 05:07:20,518 INFO L280 TraceCheckUtils]: 14: Hoare triple {2311#true} havoc #t~nondet2; {2311#true} is VALID [2020-07-18 05:07:20,518 INFO L280 TraceCheckUtils]: 15: Hoare triple {2311#true} havoc ~lk3~0; {2311#true} is VALID [2020-07-18 05:07:20,518 INFO L280 TraceCheckUtils]: 16: Hoare triple {2311#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,519 INFO L280 TraceCheckUtils]: 17: Hoare triple {2311#true} ~p4~0 := #t~nondet3; {2311#true} is VALID [2020-07-18 05:07:20,519 INFO L280 TraceCheckUtils]: 18: Hoare triple {2311#true} havoc #t~nondet3; {2311#true} is VALID [2020-07-18 05:07:20,519 INFO L280 TraceCheckUtils]: 19: Hoare triple {2311#true} havoc ~lk4~0; {2311#true} is VALID [2020-07-18 05:07:20,519 INFO L280 TraceCheckUtils]: 20: Hoare triple {2311#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,520 INFO L280 TraceCheckUtils]: 21: Hoare triple {2311#true} ~p5~0 := #t~nondet4; {2311#true} is VALID [2020-07-18 05:07:20,520 INFO L280 TraceCheckUtils]: 22: Hoare triple {2311#true} havoc #t~nondet4; {2311#true} is VALID [2020-07-18 05:07:20,520 INFO L280 TraceCheckUtils]: 23: Hoare triple {2311#true} havoc ~lk5~0; {2311#true} is VALID [2020-07-18 05:07:20,520 INFO L280 TraceCheckUtils]: 24: Hoare triple {2311#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,521 INFO L280 TraceCheckUtils]: 25: Hoare triple {2311#true} ~p6~0 := #t~nondet5; {2311#true} is VALID [2020-07-18 05:07:20,521 INFO L280 TraceCheckUtils]: 26: Hoare triple {2311#true} havoc #t~nondet5; {2311#true} is VALID [2020-07-18 05:07:20,521 INFO L280 TraceCheckUtils]: 27: Hoare triple {2311#true} havoc ~lk6~0; {2311#true} is VALID [2020-07-18 05:07:20,521 INFO L280 TraceCheckUtils]: 28: Hoare triple {2311#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,522 INFO L280 TraceCheckUtils]: 29: Hoare triple {2311#true} ~p7~0 := #t~nondet6; {2311#true} is VALID [2020-07-18 05:07:20,522 INFO L280 TraceCheckUtils]: 30: Hoare triple {2311#true} havoc #t~nondet6; {2311#true} is VALID [2020-07-18 05:07:20,522 INFO L280 TraceCheckUtils]: 31: Hoare triple {2311#true} havoc ~lk7~0; {2311#true} is VALID [2020-07-18 05:07:20,522 INFO L280 TraceCheckUtils]: 32: Hoare triple {2311#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,523 INFO L280 TraceCheckUtils]: 33: Hoare triple {2311#true} ~p8~0 := #t~nondet7; {2311#true} is VALID [2020-07-18 05:07:20,523 INFO L280 TraceCheckUtils]: 34: Hoare triple {2311#true} havoc #t~nondet7; {2311#true} is VALID [2020-07-18 05:07:20,523 INFO L280 TraceCheckUtils]: 35: Hoare triple {2311#true} havoc ~lk8~0; {2311#true} is VALID [2020-07-18 05:07:20,523 INFO L280 TraceCheckUtils]: 36: Hoare triple {2311#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,523 INFO L280 TraceCheckUtils]: 37: Hoare triple {2311#true} ~p9~0 := #t~nondet8; {2311#true} is VALID [2020-07-18 05:07:20,524 INFO L280 TraceCheckUtils]: 38: Hoare triple {2311#true} havoc #t~nondet8; {2311#true} is VALID [2020-07-18 05:07:20,524 INFO L280 TraceCheckUtils]: 39: Hoare triple {2311#true} havoc ~lk9~0; {2311#true} is VALID [2020-07-18 05:07:20,524 INFO L280 TraceCheckUtils]: 40: Hoare triple {2311#true} havoc ~cond~0; {2311#true} is VALID [2020-07-18 05:07:20,524 INFO L280 TraceCheckUtils]: 41: Hoare triple {2311#true} assume !false; {2311#true} is VALID [2020-07-18 05:07:20,524 INFO L280 TraceCheckUtils]: 42: Hoare triple {2311#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {2311#true} is VALID [2020-07-18 05:07:20,525 INFO L280 TraceCheckUtils]: 43: Hoare triple {2311#true} ~cond~0 := #t~nondet9; {2311#true} is VALID [2020-07-18 05:07:20,525 INFO L280 TraceCheckUtils]: 44: Hoare triple {2311#true} havoc #t~nondet9; {2311#true} is VALID [2020-07-18 05:07:20,525 INFO L280 TraceCheckUtils]: 45: Hoare triple {2311#true} assume !(0 == ~cond~0); {2311#true} is VALID [2020-07-18 05:07:20,525 INFO L280 TraceCheckUtils]: 46: Hoare triple {2311#true} ~lk1~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,526 INFO L280 TraceCheckUtils]: 47: Hoare triple {2311#true} ~lk2~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,526 INFO L280 TraceCheckUtils]: 48: Hoare triple {2311#true} ~lk3~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,526 INFO L280 TraceCheckUtils]: 49: Hoare triple {2311#true} ~lk4~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,526 INFO L280 TraceCheckUtils]: 50: Hoare triple {2311#true} ~lk5~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,527 INFO L280 TraceCheckUtils]: 51: Hoare triple {2311#true} ~lk6~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,527 INFO L280 TraceCheckUtils]: 52: Hoare triple {2311#true} ~lk7~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,527 INFO L280 TraceCheckUtils]: 53: Hoare triple {2311#true} ~lk8~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,527 INFO L280 TraceCheckUtils]: 54: Hoare triple {2311#true} ~lk9~0 := 0; {2311#true} is VALID [2020-07-18 05:07:20,527 INFO L280 TraceCheckUtils]: 55: Hoare triple {2311#true} assume !(0 != ~p1~0); {2311#true} is VALID [2020-07-18 05:07:20,528 INFO L280 TraceCheckUtils]: 56: Hoare triple {2311#true} assume !(0 != ~p2~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,529 INFO L280 TraceCheckUtils]: 57: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p3~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,529 INFO L280 TraceCheckUtils]: 58: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p4~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,530 INFO L280 TraceCheckUtils]: 59: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p5~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,531 INFO L280 TraceCheckUtils]: 60: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p6~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,531 INFO L280 TraceCheckUtils]: 61: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p7~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,532 INFO L280 TraceCheckUtils]: 62: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p8~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,532 INFO L280 TraceCheckUtils]: 63: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p9~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,533 INFO L280 TraceCheckUtils]: 64: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p1~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 05:07:20,534 INFO L280 TraceCheckUtils]: 65: Hoare triple {2315#(= 0 main_~p2~0)} assume 0 != ~p2~0; {2312#false} is VALID [2020-07-18 05:07:20,534 INFO L280 TraceCheckUtils]: 66: Hoare triple {2312#false} assume 1 != ~lk2~0; {2312#false} is VALID [2020-07-18 05:07:20,534 INFO L280 TraceCheckUtils]: 67: Hoare triple {2312#false} assume !false; {2312#false} is VALID [2020-07-18 05:07:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:20,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1591747487] [2020-07-18 05:07:20,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:20,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:20,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119710164] [2020-07-18 05:07:20,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-18 05:07:20,541 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:20,541 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:20,601 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:20,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:20,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:20,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:20,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:20,603 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 3 states. [2020-07-18 05:07:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:21,114 INFO L93 Difference]: Finished difference Result 386 states and 531 transitions. [2020-07-18 05:07:21,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:21,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-18 05:07:21,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-18 05:07:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:21,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-18 05:07:21,124 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 295 transitions. [2020-07-18 05:07:21,409 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 295 edges. 295 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:21,417 INFO L225 Difference]: With dead ends: 386 [2020-07-18 05:07:21,417 INFO L226 Difference]: Without dead ends: 269 [2020-07-18 05:07:21,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:21,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-07-18 05:07:21,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2020-07-18 05:07:21,682 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:21,683 INFO L82 GeneralOperation]: Start isEquivalent. First operand 269 states. Second operand 267 states. [2020-07-18 05:07:21,683 INFO L74 IsIncluded]: Start isIncluded. First operand 269 states. Second operand 267 states. [2020-07-18 05:07:21,683 INFO L87 Difference]: Start difference. First operand 269 states. Second operand 267 states. [2020-07-18 05:07:21,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:21,694 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-18 05:07:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-18 05:07:21,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:21,696 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:21,696 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 269 states. [2020-07-18 05:07:21,696 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 269 states. [2020-07-18 05:07:21,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:21,706 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-18 05:07:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-18 05:07:21,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:21,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:21,708 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:21,708 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-18 05:07:21,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2020-07-18 05:07:21,718 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 68 [2020-07-18 05:07:21,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:21,718 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2020-07-18 05:07:21,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:21,718 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 360 transitions. [2020-07-18 05:07:22,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 360 edges. 360 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:22,086 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2020-07-18 05:07:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-18 05:07:22,087 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:22,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:22,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 05:07:22,088 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:22,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:22,088 INFO L82 PathProgramCache]: Analyzing trace with hash 113752694, now seen corresponding path program 1 times [2020-07-18 05:07:22,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:22,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167220001] [2020-07-18 05:07:22,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:22,147 INFO L280 TraceCheckUtils]: 0: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-18 05:07:22,147 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-18 05:07:22,147 INFO L263 TraceCheckUtils]: 0: Hoare triple {4162#true} call ULTIMATE.init(); {4162#true} is VALID [2020-07-18 05:07:22,148 INFO L280 TraceCheckUtils]: 1: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-18 05:07:22,148 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-18 05:07:22,148 INFO L263 TraceCheckUtils]: 3: Hoare triple {4162#true} call #t~ret10 := main(); {4162#true} is VALID [2020-07-18 05:07:22,148 INFO L280 TraceCheckUtils]: 4: Hoare triple {4162#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,149 INFO L280 TraceCheckUtils]: 5: Hoare triple {4162#true} ~p1~0 := #t~nondet0; {4162#true} is VALID [2020-07-18 05:07:22,149 INFO L280 TraceCheckUtils]: 6: Hoare triple {4162#true} havoc #t~nondet0; {4162#true} is VALID [2020-07-18 05:07:22,149 INFO L280 TraceCheckUtils]: 7: Hoare triple {4162#true} havoc ~lk1~0; {4162#true} is VALID [2020-07-18 05:07:22,149 INFO L280 TraceCheckUtils]: 8: Hoare triple {4162#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,149 INFO L280 TraceCheckUtils]: 9: Hoare triple {4162#true} ~p2~0 := #t~nondet1; {4162#true} is VALID [2020-07-18 05:07:22,150 INFO L280 TraceCheckUtils]: 10: Hoare triple {4162#true} havoc #t~nondet1; {4162#true} is VALID [2020-07-18 05:07:22,150 INFO L280 TraceCheckUtils]: 11: Hoare triple {4162#true} havoc ~lk2~0; {4162#true} is VALID [2020-07-18 05:07:22,150 INFO L280 TraceCheckUtils]: 12: Hoare triple {4162#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,150 INFO L280 TraceCheckUtils]: 13: Hoare triple {4162#true} ~p3~0 := #t~nondet2; {4162#true} is VALID [2020-07-18 05:07:22,150 INFO L280 TraceCheckUtils]: 14: Hoare triple {4162#true} havoc #t~nondet2; {4162#true} is VALID [2020-07-18 05:07:22,151 INFO L280 TraceCheckUtils]: 15: Hoare triple {4162#true} havoc ~lk3~0; {4162#true} is VALID [2020-07-18 05:07:22,151 INFO L280 TraceCheckUtils]: 16: Hoare triple {4162#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,151 INFO L280 TraceCheckUtils]: 17: Hoare triple {4162#true} ~p4~0 := #t~nondet3; {4162#true} is VALID [2020-07-18 05:07:22,151 INFO L280 TraceCheckUtils]: 18: Hoare triple {4162#true} havoc #t~nondet3; {4162#true} is VALID [2020-07-18 05:07:22,152 INFO L280 TraceCheckUtils]: 19: Hoare triple {4162#true} havoc ~lk4~0; {4162#true} is VALID [2020-07-18 05:07:22,152 INFO L280 TraceCheckUtils]: 20: Hoare triple {4162#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,152 INFO L280 TraceCheckUtils]: 21: Hoare triple {4162#true} ~p5~0 := #t~nondet4; {4162#true} is VALID [2020-07-18 05:07:22,152 INFO L280 TraceCheckUtils]: 22: Hoare triple {4162#true} havoc #t~nondet4; {4162#true} is VALID [2020-07-18 05:07:22,152 INFO L280 TraceCheckUtils]: 23: Hoare triple {4162#true} havoc ~lk5~0; {4162#true} is VALID [2020-07-18 05:07:22,153 INFO L280 TraceCheckUtils]: 24: Hoare triple {4162#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,153 INFO L280 TraceCheckUtils]: 25: Hoare triple {4162#true} ~p6~0 := #t~nondet5; {4162#true} is VALID [2020-07-18 05:07:22,153 INFO L280 TraceCheckUtils]: 26: Hoare triple {4162#true} havoc #t~nondet5; {4162#true} is VALID [2020-07-18 05:07:22,153 INFO L280 TraceCheckUtils]: 27: Hoare triple {4162#true} havoc ~lk6~0; {4162#true} is VALID [2020-07-18 05:07:22,153 INFO L280 TraceCheckUtils]: 28: Hoare triple {4162#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,154 INFO L280 TraceCheckUtils]: 29: Hoare triple {4162#true} ~p7~0 := #t~nondet6; {4162#true} is VALID [2020-07-18 05:07:22,154 INFO L280 TraceCheckUtils]: 30: Hoare triple {4162#true} havoc #t~nondet6; {4162#true} is VALID [2020-07-18 05:07:22,154 INFO L280 TraceCheckUtils]: 31: Hoare triple {4162#true} havoc ~lk7~0; {4162#true} is VALID [2020-07-18 05:07:22,154 INFO L280 TraceCheckUtils]: 32: Hoare triple {4162#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,154 INFO L280 TraceCheckUtils]: 33: Hoare triple {4162#true} ~p8~0 := #t~nondet7; {4162#true} is VALID [2020-07-18 05:07:22,155 INFO L280 TraceCheckUtils]: 34: Hoare triple {4162#true} havoc #t~nondet7; {4162#true} is VALID [2020-07-18 05:07:22,155 INFO L280 TraceCheckUtils]: 35: Hoare triple {4162#true} havoc ~lk8~0; {4162#true} is VALID [2020-07-18 05:07:22,155 INFO L280 TraceCheckUtils]: 36: Hoare triple {4162#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,155 INFO L280 TraceCheckUtils]: 37: Hoare triple {4162#true} ~p9~0 := #t~nondet8; {4162#true} is VALID [2020-07-18 05:07:22,155 INFO L280 TraceCheckUtils]: 38: Hoare triple {4162#true} havoc #t~nondet8; {4162#true} is VALID [2020-07-18 05:07:22,155 INFO L280 TraceCheckUtils]: 39: Hoare triple {4162#true} havoc ~lk9~0; {4162#true} is VALID [2020-07-18 05:07:22,155 INFO L280 TraceCheckUtils]: 40: Hoare triple {4162#true} havoc ~cond~0; {4162#true} is VALID [2020-07-18 05:07:22,156 INFO L280 TraceCheckUtils]: 41: Hoare triple {4162#true} assume !false; {4162#true} is VALID [2020-07-18 05:07:22,156 INFO L280 TraceCheckUtils]: 42: Hoare triple {4162#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {4162#true} is VALID [2020-07-18 05:07:22,156 INFO L280 TraceCheckUtils]: 43: Hoare triple {4162#true} ~cond~0 := #t~nondet9; {4162#true} is VALID [2020-07-18 05:07:22,156 INFO L280 TraceCheckUtils]: 44: Hoare triple {4162#true} havoc #t~nondet9; {4162#true} is VALID [2020-07-18 05:07:22,157 INFO L280 TraceCheckUtils]: 45: Hoare triple {4162#true} assume !(0 == ~cond~0); {4162#true} is VALID [2020-07-18 05:07:22,157 INFO L280 TraceCheckUtils]: 46: Hoare triple {4162#true} ~lk1~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,157 INFO L280 TraceCheckUtils]: 47: Hoare triple {4162#true} ~lk2~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,157 INFO L280 TraceCheckUtils]: 48: Hoare triple {4162#true} ~lk3~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,157 INFO L280 TraceCheckUtils]: 49: Hoare triple {4162#true} ~lk4~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,158 INFO L280 TraceCheckUtils]: 50: Hoare triple {4162#true} ~lk5~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,158 INFO L280 TraceCheckUtils]: 51: Hoare triple {4162#true} ~lk6~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,158 INFO L280 TraceCheckUtils]: 52: Hoare triple {4162#true} ~lk7~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,158 INFO L280 TraceCheckUtils]: 53: Hoare triple {4162#true} ~lk8~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,159 INFO L280 TraceCheckUtils]: 54: Hoare triple {4162#true} ~lk9~0 := 0; {4162#true} is VALID [2020-07-18 05:07:22,159 INFO L280 TraceCheckUtils]: 55: Hoare triple {4162#true} assume !(0 != ~p1~0); {4162#true} is VALID [2020-07-18 05:07:22,159 INFO L280 TraceCheckUtils]: 56: Hoare triple {4162#true} assume 0 != ~p2~0; {4162#true} is VALID [2020-07-18 05:07:22,160 INFO L280 TraceCheckUtils]: 57: Hoare triple {4162#true} ~lk2~0 := 1; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,161 INFO L280 TraceCheckUtils]: 58: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p3~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,162 INFO L280 TraceCheckUtils]: 59: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p4~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,162 INFO L280 TraceCheckUtils]: 60: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p5~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,164 INFO L280 TraceCheckUtils]: 61: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p6~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,165 INFO L280 TraceCheckUtils]: 62: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p7~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,165 INFO L280 TraceCheckUtils]: 63: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p8~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,166 INFO L280 TraceCheckUtils]: 64: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p9~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,166 INFO L280 TraceCheckUtils]: 65: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p1~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,167 INFO L280 TraceCheckUtils]: 66: Hoare triple {4166#(= 1 main_~lk2~0)} assume 0 != ~p2~0; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 05:07:22,168 INFO L280 TraceCheckUtils]: 67: Hoare triple {4166#(= 1 main_~lk2~0)} assume 1 != ~lk2~0; {4163#false} is VALID [2020-07-18 05:07:22,168 INFO L280 TraceCheckUtils]: 68: Hoare triple {4163#false} assume !false; {4163#false} is VALID [2020-07-18 05:07:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:22,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167220001] [2020-07-18 05:07:22,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:22,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:22,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885862665] [2020-07-18 05:07:22,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-18 05:07:22,172 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:22,172 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:22,232 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:22,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:22,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:22,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:22,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:22,234 INFO L87 Difference]: Start difference. First operand 267 states and 360 transitions. Second operand 3 states. [2020-07-18 05:07:22,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:22,770 INFO L93 Difference]: Finished difference Result 327 states and 446 transitions. [2020-07-18 05:07:22,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:22,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-18 05:07:22,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:22,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-18 05:07:22,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:22,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-18 05:07:22,776 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 197 transitions. [2020-07-18 05:07:22,955 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:22,963 INFO L225 Difference]: With dead ends: 327 [2020-07-18 05:07:22,963 INFO L226 Difference]: Without dead ends: 325 [2020-07-18 05:07:22,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:22,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-07-18 05:07:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 267. [2020-07-18 05:07:23,298 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:23,298 INFO L82 GeneralOperation]: Start isEquivalent. First operand 325 states. Second operand 267 states. [2020-07-18 05:07:23,298 INFO L74 IsIncluded]: Start isIncluded. First operand 325 states. Second operand 267 states. [2020-07-18 05:07:23,298 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 267 states. [2020-07-18 05:07:23,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:23,318 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-18 05:07:23,318 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-18 05:07:23,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:23,319 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:23,320 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 325 states. [2020-07-18 05:07:23,320 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 325 states. [2020-07-18 05:07:23,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:23,350 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-18 05:07:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-18 05:07:23,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:23,352 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:23,352 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:23,352 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-18 05:07:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2020-07-18 05:07:23,360 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 358 transitions. Word has length 69 [2020-07-18 05:07:23,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:23,360 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 358 transitions. [2020-07-18 05:07:23,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:23,361 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 358 transitions. [2020-07-18 05:07:23,741 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 358 edges. 358 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:23,742 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2020-07-18 05:07:23,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-18 05:07:23,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:23,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:23,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-18 05:07:23,744 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:23,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:23,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1002841264, now seen corresponding path program 1 times [2020-07-18 05:07:23,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:23,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811252476] [2020-07-18 05:07:23,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:23,805 INFO L280 TraceCheckUtils]: 0: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-18 05:07:23,805 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-18 05:07:23,806 INFO L263 TraceCheckUtils]: 0: Hoare triple {6007#true} call ULTIMATE.init(); {6007#true} is VALID [2020-07-18 05:07:23,806 INFO L280 TraceCheckUtils]: 1: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-18 05:07:23,806 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-18 05:07:23,806 INFO L263 TraceCheckUtils]: 3: Hoare triple {6007#true} call #t~ret10 := main(); {6007#true} is VALID [2020-07-18 05:07:23,807 INFO L280 TraceCheckUtils]: 4: Hoare triple {6007#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,807 INFO L280 TraceCheckUtils]: 5: Hoare triple {6007#true} ~p1~0 := #t~nondet0; {6007#true} is VALID [2020-07-18 05:07:23,807 INFO L280 TraceCheckUtils]: 6: Hoare triple {6007#true} havoc #t~nondet0; {6007#true} is VALID [2020-07-18 05:07:23,808 INFO L280 TraceCheckUtils]: 7: Hoare triple {6007#true} havoc ~lk1~0; {6007#true} is VALID [2020-07-18 05:07:23,808 INFO L280 TraceCheckUtils]: 8: Hoare triple {6007#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,808 INFO L280 TraceCheckUtils]: 9: Hoare triple {6007#true} ~p2~0 := #t~nondet1; {6007#true} is VALID [2020-07-18 05:07:23,808 INFO L280 TraceCheckUtils]: 10: Hoare triple {6007#true} havoc #t~nondet1; {6007#true} is VALID [2020-07-18 05:07:23,809 INFO L280 TraceCheckUtils]: 11: Hoare triple {6007#true} havoc ~lk2~0; {6007#true} is VALID [2020-07-18 05:07:23,809 INFO L280 TraceCheckUtils]: 12: Hoare triple {6007#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,809 INFO L280 TraceCheckUtils]: 13: Hoare triple {6007#true} ~p3~0 := #t~nondet2; {6007#true} is VALID [2020-07-18 05:07:23,810 INFO L280 TraceCheckUtils]: 14: Hoare triple {6007#true} havoc #t~nondet2; {6007#true} is VALID [2020-07-18 05:07:23,810 INFO L280 TraceCheckUtils]: 15: Hoare triple {6007#true} havoc ~lk3~0; {6007#true} is VALID [2020-07-18 05:07:23,810 INFO L280 TraceCheckUtils]: 16: Hoare triple {6007#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,811 INFO L280 TraceCheckUtils]: 17: Hoare triple {6007#true} ~p4~0 := #t~nondet3; {6007#true} is VALID [2020-07-18 05:07:23,811 INFO L280 TraceCheckUtils]: 18: Hoare triple {6007#true} havoc #t~nondet3; {6007#true} is VALID [2020-07-18 05:07:23,811 INFO L280 TraceCheckUtils]: 19: Hoare triple {6007#true} havoc ~lk4~0; {6007#true} is VALID [2020-07-18 05:07:23,811 INFO L280 TraceCheckUtils]: 20: Hoare triple {6007#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,812 INFO L280 TraceCheckUtils]: 21: Hoare triple {6007#true} ~p5~0 := #t~nondet4; {6007#true} is VALID [2020-07-18 05:07:23,812 INFO L280 TraceCheckUtils]: 22: Hoare triple {6007#true} havoc #t~nondet4; {6007#true} is VALID [2020-07-18 05:07:23,812 INFO L280 TraceCheckUtils]: 23: Hoare triple {6007#true} havoc ~lk5~0; {6007#true} is VALID [2020-07-18 05:07:23,812 INFO L280 TraceCheckUtils]: 24: Hoare triple {6007#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,813 INFO L280 TraceCheckUtils]: 25: Hoare triple {6007#true} ~p6~0 := #t~nondet5; {6007#true} is VALID [2020-07-18 05:07:23,813 INFO L280 TraceCheckUtils]: 26: Hoare triple {6007#true} havoc #t~nondet5; {6007#true} is VALID [2020-07-18 05:07:23,813 INFO L280 TraceCheckUtils]: 27: Hoare triple {6007#true} havoc ~lk6~0; {6007#true} is VALID [2020-07-18 05:07:23,813 INFO L280 TraceCheckUtils]: 28: Hoare triple {6007#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,813 INFO L280 TraceCheckUtils]: 29: Hoare triple {6007#true} ~p7~0 := #t~nondet6; {6007#true} is VALID [2020-07-18 05:07:23,814 INFO L280 TraceCheckUtils]: 30: Hoare triple {6007#true} havoc #t~nondet6; {6007#true} is VALID [2020-07-18 05:07:23,814 INFO L280 TraceCheckUtils]: 31: Hoare triple {6007#true} havoc ~lk7~0; {6007#true} is VALID [2020-07-18 05:07:23,814 INFO L280 TraceCheckUtils]: 32: Hoare triple {6007#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,814 INFO L280 TraceCheckUtils]: 33: Hoare triple {6007#true} ~p8~0 := #t~nondet7; {6007#true} is VALID [2020-07-18 05:07:23,815 INFO L280 TraceCheckUtils]: 34: Hoare triple {6007#true} havoc #t~nondet7; {6007#true} is VALID [2020-07-18 05:07:23,815 INFO L280 TraceCheckUtils]: 35: Hoare triple {6007#true} havoc ~lk8~0; {6007#true} is VALID [2020-07-18 05:07:23,815 INFO L280 TraceCheckUtils]: 36: Hoare triple {6007#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,815 INFO L280 TraceCheckUtils]: 37: Hoare triple {6007#true} ~p9~0 := #t~nondet8; {6007#true} is VALID [2020-07-18 05:07:23,815 INFO L280 TraceCheckUtils]: 38: Hoare triple {6007#true} havoc #t~nondet8; {6007#true} is VALID [2020-07-18 05:07:23,816 INFO L280 TraceCheckUtils]: 39: Hoare triple {6007#true} havoc ~lk9~0; {6007#true} is VALID [2020-07-18 05:07:23,816 INFO L280 TraceCheckUtils]: 40: Hoare triple {6007#true} havoc ~cond~0; {6007#true} is VALID [2020-07-18 05:07:23,816 INFO L280 TraceCheckUtils]: 41: Hoare triple {6007#true} assume !false; {6007#true} is VALID [2020-07-18 05:07:23,816 INFO L280 TraceCheckUtils]: 42: Hoare triple {6007#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {6007#true} is VALID [2020-07-18 05:07:23,816 INFO L280 TraceCheckUtils]: 43: Hoare triple {6007#true} ~cond~0 := #t~nondet9; {6007#true} is VALID [2020-07-18 05:07:23,817 INFO L280 TraceCheckUtils]: 44: Hoare triple {6007#true} havoc #t~nondet9; {6007#true} is VALID [2020-07-18 05:07:23,817 INFO L280 TraceCheckUtils]: 45: Hoare triple {6007#true} assume !(0 == ~cond~0); {6007#true} is VALID [2020-07-18 05:07:23,817 INFO L280 TraceCheckUtils]: 46: Hoare triple {6007#true} ~lk1~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,817 INFO L280 TraceCheckUtils]: 47: Hoare triple {6007#true} ~lk2~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,818 INFO L280 TraceCheckUtils]: 48: Hoare triple {6007#true} ~lk3~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,818 INFO L280 TraceCheckUtils]: 49: Hoare triple {6007#true} ~lk4~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,818 INFO L280 TraceCheckUtils]: 50: Hoare triple {6007#true} ~lk5~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,818 INFO L280 TraceCheckUtils]: 51: Hoare triple {6007#true} ~lk6~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,818 INFO L280 TraceCheckUtils]: 52: Hoare triple {6007#true} ~lk7~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,819 INFO L280 TraceCheckUtils]: 53: Hoare triple {6007#true} ~lk8~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,819 INFO L280 TraceCheckUtils]: 54: Hoare triple {6007#true} ~lk9~0 := 0; {6007#true} is VALID [2020-07-18 05:07:23,819 INFO L280 TraceCheckUtils]: 55: Hoare triple {6007#true} assume !(0 != ~p1~0); {6007#true} is VALID [2020-07-18 05:07:23,819 INFO L280 TraceCheckUtils]: 56: Hoare triple {6007#true} assume !(0 != ~p2~0); {6007#true} is VALID [2020-07-18 05:07:23,820 INFO L280 TraceCheckUtils]: 57: Hoare triple {6007#true} assume !(0 != ~p3~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,821 INFO L280 TraceCheckUtils]: 58: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p4~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,821 INFO L280 TraceCheckUtils]: 59: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p5~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,822 INFO L280 TraceCheckUtils]: 60: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p6~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,823 INFO L280 TraceCheckUtils]: 61: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p7~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,824 INFO L280 TraceCheckUtils]: 62: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p8~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,824 INFO L280 TraceCheckUtils]: 63: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p9~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,825 INFO L280 TraceCheckUtils]: 64: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p1~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,826 INFO L280 TraceCheckUtils]: 65: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p2~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 05:07:23,827 INFO L280 TraceCheckUtils]: 66: Hoare triple {6011#(= 0 main_~p3~0)} assume 0 != ~p3~0; {6008#false} is VALID [2020-07-18 05:07:23,827 INFO L280 TraceCheckUtils]: 67: Hoare triple {6008#false} assume 1 != ~lk3~0; {6008#false} is VALID [2020-07-18 05:07:23,827 INFO L280 TraceCheckUtils]: 68: Hoare triple {6008#false} assume !false; {6008#false} is VALID [2020-07-18 05:07:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:23,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811252476] [2020-07-18 05:07:23,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:23,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:23,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593950449] [2020-07-18 05:07:23,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-18 05:07:23,833 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:23,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:23,899 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:23,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:23,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:23,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:23,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:23,901 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. Second operand 3 states. [2020-07-18 05:07:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:24,749 INFO L93 Difference]: Finished difference Result 707 states and 976 transitions. [2020-07-18 05:07:24,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:24,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-18 05:07:24,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:24,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:24,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-18 05:07:24,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:24,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-18 05:07:24,755 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 292 transitions. [2020-07-18 05:07:25,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 292 edges. 292 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:25,116 INFO L225 Difference]: With dead ends: 707 [2020-07-18 05:07:25,117 INFO L226 Difference]: Without dead ends: 481 [2020-07-18 05:07:25,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:25,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-07-18 05:07:25,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2020-07-18 05:07:25,747 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:25,747 INFO L82 GeneralOperation]: Start isEquivalent. First operand 481 states. Second operand 479 states. [2020-07-18 05:07:25,747 INFO L74 IsIncluded]: Start isIncluded. First operand 481 states. Second operand 479 states. [2020-07-18 05:07:25,747 INFO L87 Difference]: Start difference. First operand 481 states. Second operand 479 states. [2020-07-18 05:07:25,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:25,765 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-18 05:07:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-18 05:07:25,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:25,766 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:25,766 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 481 states. [2020-07-18 05:07:25,767 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 481 states. [2020-07-18 05:07:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:25,784 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-18 05:07:25,785 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-18 05:07:25,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:25,786 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:25,786 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:25,786 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:25,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-18 05:07:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2020-07-18 05:07:25,801 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 69 [2020-07-18 05:07:25,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:25,802 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2020-07-18 05:07:25,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:25,802 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 650 transitions. [2020-07-18 05:07:26,468 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 650 edges. 650 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2020-07-18 05:07:26,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-18 05:07:26,472 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:26,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:26,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-18 05:07:26,472 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:26,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:26,472 INFO L82 PathProgramCache]: Analyzing trace with hash -8681195, now seen corresponding path program 1 times [2020-07-18 05:07:26,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:26,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111957596] [2020-07-18 05:07:26,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:26,542 INFO L280 TraceCheckUtils]: 0: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-18 05:07:26,542 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-18 05:07:26,542 INFO L263 TraceCheckUtils]: 0: Hoare triple {9348#true} call ULTIMATE.init(); {9348#true} is VALID [2020-07-18 05:07:26,542 INFO L280 TraceCheckUtils]: 1: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-18 05:07:26,542 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-18 05:07:26,543 INFO L263 TraceCheckUtils]: 3: Hoare triple {9348#true} call #t~ret10 := main(); {9348#true} is VALID [2020-07-18 05:07:26,543 INFO L280 TraceCheckUtils]: 4: Hoare triple {9348#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,543 INFO L280 TraceCheckUtils]: 5: Hoare triple {9348#true} ~p1~0 := #t~nondet0; {9348#true} is VALID [2020-07-18 05:07:26,543 INFO L280 TraceCheckUtils]: 6: Hoare triple {9348#true} havoc #t~nondet0; {9348#true} is VALID [2020-07-18 05:07:26,544 INFO L280 TraceCheckUtils]: 7: Hoare triple {9348#true} havoc ~lk1~0; {9348#true} is VALID [2020-07-18 05:07:26,544 INFO L280 TraceCheckUtils]: 8: Hoare triple {9348#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,544 INFO L280 TraceCheckUtils]: 9: Hoare triple {9348#true} ~p2~0 := #t~nondet1; {9348#true} is VALID [2020-07-18 05:07:26,544 INFO L280 TraceCheckUtils]: 10: Hoare triple {9348#true} havoc #t~nondet1; {9348#true} is VALID [2020-07-18 05:07:26,545 INFO L280 TraceCheckUtils]: 11: Hoare triple {9348#true} havoc ~lk2~0; {9348#true} is VALID [2020-07-18 05:07:26,545 INFO L280 TraceCheckUtils]: 12: Hoare triple {9348#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,545 INFO L280 TraceCheckUtils]: 13: Hoare triple {9348#true} ~p3~0 := #t~nondet2; {9348#true} is VALID [2020-07-18 05:07:26,545 INFO L280 TraceCheckUtils]: 14: Hoare triple {9348#true} havoc #t~nondet2; {9348#true} is VALID [2020-07-18 05:07:26,546 INFO L280 TraceCheckUtils]: 15: Hoare triple {9348#true} havoc ~lk3~0; {9348#true} is VALID [2020-07-18 05:07:26,546 INFO L280 TraceCheckUtils]: 16: Hoare triple {9348#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,546 INFO L280 TraceCheckUtils]: 17: Hoare triple {9348#true} ~p4~0 := #t~nondet3; {9348#true} is VALID [2020-07-18 05:07:26,546 INFO L280 TraceCheckUtils]: 18: Hoare triple {9348#true} havoc #t~nondet3; {9348#true} is VALID [2020-07-18 05:07:26,546 INFO L280 TraceCheckUtils]: 19: Hoare triple {9348#true} havoc ~lk4~0; {9348#true} is VALID [2020-07-18 05:07:26,546 INFO L280 TraceCheckUtils]: 20: Hoare triple {9348#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,546 INFO L280 TraceCheckUtils]: 21: Hoare triple {9348#true} ~p5~0 := #t~nondet4; {9348#true} is VALID [2020-07-18 05:07:26,547 INFO L280 TraceCheckUtils]: 22: Hoare triple {9348#true} havoc #t~nondet4; {9348#true} is VALID [2020-07-18 05:07:26,547 INFO L280 TraceCheckUtils]: 23: Hoare triple {9348#true} havoc ~lk5~0; {9348#true} is VALID [2020-07-18 05:07:26,547 INFO L280 TraceCheckUtils]: 24: Hoare triple {9348#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,547 INFO L280 TraceCheckUtils]: 25: Hoare triple {9348#true} ~p6~0 := #t~nondet5; {9348#true} is VALID [2020-07-18 05:07:26,547 INFO L280 TraceCheckUtils]: 26: Hoare triple {9348#true} havoc #t~nondet5; {9348#true} is VALID [2020-07-18 05:07:26,547 INFO L280 TraceCheckUtils]: 27: Hoare triple {9348#true} havoc ~lk6~0; {9348#true} is VALID [2020-07-18 05:07:26,547 INFO L280 TraceCheckUtils]: 28: Hoare triple {9348#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,548 INFO L280 TraceCheckUtils]: 29: Hoare triple {9348#true} ~p7~0 := #t~nondet6; {9348#true} is VALID [2020-07-18 05:07:26,548 INFO L280 TraceCheckUtils]: 30: Hoare triple {9348#true} havoc #t~nondet6; {9348#true} is VALID [2020-07-18 05:07:26,548 INFO L280 TraceCheckUtils]: 31: Hoare triple {9348#true} havoc ~lk7~0; {9348#true} is VALID [2020-07-18 05:07:26,548 INFO L280 TraceCheckUtils]: 32: Hoare triple {9348#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,549 INFO L280 TraceCheckUtils]: 33: Hoare triple {9348#true} ~p8~0 := #t~nondet7; {9348#true} is VALID [2020-07-18 05:07:26,549 INFO L280 TraceCheckUtils]: 34: Hoare triple {9348#true} havoc #t~nondet7; {9348#true} is VALID [2020-07-18 05:07:26,549 INFO L280 TraceCheckUtils]: 35: Hoare triple {9348#true} havoc ~lk8~0; {9348#true} is VALID [2020-07-18 05:07:26,549 INFO L280 TraceCheckUtils]: 36: Hoare triple {9348#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,549 INFO L280 TraceCheckUtils]: 37: Hoare triple {9348#true} ~p9~0 := #t~nondet8; {9348#true} is VALID [2020-07-18 05:07:26,550 INFO L280 TraceCheckUtils]: 38: Hoare triple {9348#true} havoc #t~nondet8; {9348#true} is VALID [2020-07-18 05:07:26,550 INFO L280 TraceCheckUtils]: 39: Hoare triple {9348#true} havoc ~lk9~0; {9348#true} is VALID [2020-07-18 05:07:26,550 INFO L280 TraceCheckUtils]: 40: Hoare triple {9348#true} havoc ~cond~0; {9348#true} is VALID [2020-07-18 05:07:26,550 INFO L280 TraceCheckUtils]: 41: Hoare triple {9348#true} assume !false; {9348#true} is VALID [2020-07-18 05:07:26,550 INFO L280 TraceCheckUtils]: 42: Hoare triple {9348#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {9348#true} is VALID [2020-07-18 05:07:26,551 INFO L280 TraceCheckUtils]: 43: Hoare triple {9348#true} ~cond~0 := #t~nondet9; {9348#true} is VALID [2020-07-18 05:07:26,551 INFO L280 TraceCheckUtils]: 44: Hoare triple {9348#true} havoc #t~nondet9; {9348#true} is VALID [2020-07-18 05:07:26,551 INFO L280 TraceCheckUtils]: 45: Hoare triple {9348#true} assume !(0 == ~cond~0); {9348#true} is VALID [2020-07-18 05:07:26,551 INFO L280 TraceCheckUtils]: 46: Hoare triple {9348#true} ~lk1~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,551 INFO L280 TraceCheckUtils]: 47: Hoare triple {9348#true} ~lk2~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,551 INFO L280 TraceCheckUtils]: 48: Hoare triple {9348#true} ~lk3~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,551 INFO L280 TraceCheckUtils]: 49: Hoare triple {9348#true} ~lk4~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,552 INFO L280 TraceCheckUtils]: 50: Hoare triple {9348#true} ~lk5~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,552 INFO L280 TraceCheckUtils]: 51: Hoare triple {9348#true} ~lk6~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,552 INFO L280 TraceCheckUtils]: 52: Hoare triple {9348#true} ~lk7~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,552 INFO L280 TraceCheckUtils]: 53: Hoare triple {9348#true} ~lk8~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,552 INFO L280 TraceCheckUtils]: 54: Hoare triple {9348#true} ~lk9~0 := 0; {9348#true} is VALID [2020-07-18 05:07:26,552 INFO L280 TraceCheckUtils]: 55: Hoare triple {9348#true} assume !(0 != ~p1~0); {9348#true} is VALID [2020-07-18 05:07:26,552 INFO L280 TraceCheckUtils]: 56: Hoare triple {9348#true} assume !(0 != ~p2~0); {9348#true} is VALID [2020-07-18 05:07:26,553 INFO L280 TraceCheckUtils]: 57: Hoare triple {9348#true} assume 0 != ~p3~0; {9348#true} is VALID [2020-07-18 05:07:26,553 INFO L280 TraceCheckUtils]: 58: Hoare triple {9348#true} ~lk3~0 := 1; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,554 INFO L280 TraceCheckUtils]: 59: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p4~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,554 INFO L280 TraceCheckUtils]: 60: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p5~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,554 INFO L280 TraceCheckUtils]: 61: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p6~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,555 INFO L280 TraceCheckUtils]: 62: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p7~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,555 INFO L280 TraceCheckUtils]: 63: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p8~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,555 INFO L280 TraceCheckUtils]: 64: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p9~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,556 INFO L280 TraceCheckUtils]: 65: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p1~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,556 INFO L280 TraceCheckUtils]: 66: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p2~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,557 INFO L280 TraceCheckUtils]: 67: Hoare triple {9352#(= 1 main_~lk3~0)} assume 0 != ~p3~0; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 05:07:26,557 INFO L280 TraceCheckUtils]: 68: Hoare triple {9352#(= 1 main_~lk3~0)} assume 1 != ~lk3~0; {9349#false} is VALID [2020-07-18 05:07:26,557 INFO L280 TraceCheckUtils]: 69: Hoare triple {9349#false} assume !false; {9349#false} is VALID [2020-07-18 05:07:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:26,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111957596] [2020-07-18 05:07:26,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:26,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:26,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409919280] [2020-07-18 05:07:26,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-18 05:07:26,561 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:26,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:26,628 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:26,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:26,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:26,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:26,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:26,629 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2020-07-18 05:07:27,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:27,705 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2020-07-18 05:07:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:27,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-18 05:07:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:27,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:27,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-18 05:07:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:27,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-18 05:07:27,711 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 193 transitions. [2020-07-18 05:07:27,886 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 193 edges. 193 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:27,911 INFO L225 Difference]: With dead ends: 587 [2020-07-18 05:07:27,911 INFO L226 Difference]: Without dead ends: 585 [2020-07-18 05:07:27,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-07-18 05:07:28,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 479. [2020-07-18 05:07:28,609 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:28,609 INFO L82 GeneralOperation]: Start isEquivalent. First operand 585 states. Second operand 479 states. [2020-07-18 05:07:28,610 INFO L74 IsIncluded]: Start isIncluded. First operand 585 states. Second operand 479 states. [2020-07-18 05:07:28,610 INFO L87 Difference]: Start difference. First operand 585 states. Second operand 479 states. [2020-07-18 05:07:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:28,634 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-18 05:07:28,634 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-18 05:07:28,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:28,636 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:28,636 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 585 states. [2020-07-18 05:07:28,636 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 585 states. [2020-07-18 05:07:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:28,663 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-18 05:07:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-18 05:07:28,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:28,664 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:28,664 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:28,665 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:28,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-18 05:07:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2020-07-18 05:07:28,682 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 70 [2020-07-18 05:07:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:28,682 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2020-07-18 05:07:28,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:28,683 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 646 transitions. [2020-07-18 05:07:29,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 646 edges. 646 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2020-07-18 05:07:29,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-18 05:07:29,405 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:29,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:29,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-18 05:07:29,409 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:29,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:29,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1023553130, now seen corresponding path program 1 times [2020-07-18 05:07:29,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:29,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281793535] [2020-07-18 05:07:29,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:29,474 INFO L280 TraceCheckUtils]: 0: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-18 05:07:29,474 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-18 05:07:29,475 INFO L263 TraceCheckUtils]: 0: Hoare triple {12657#true} call ULTIMATE.init(); {12657#true} is VALID [2020-07-18 05:07:29,475 INFO L280 TraceCheckUtils]: 1: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-18 05:07:29,475 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-18 05:07:29,475 INFO L263 TraceCheckUtils]: 3: Hoare triple {12657#true} call #t~ret10 := main(); {12657#true} is VALID [2020-07-18 05:07:29,476 INFO L280 TraceCheckUtils]: 4: Hoare triple {12657#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,476 INFO L280 TraceCheckUtils]: 5: Hoare triple {12657#true} ~p1~0 := #t~nondet0; {12657#true} is VALID [2020-07-18 05:07:29,476 INFO L280 TraceCheckUtils]: 6: Hoare triple {12657#true} havoc #t~nondet0; {12657#true} is VALID [2020-07-18 05:07:29,476 INFO L280 TraceCheckUtils]: 7: Hoare triple {12657#true} havoc ~lk1~0; {12657#true} is VALID [2020-07-18 05:07:29,476 INFO L280 TraceCheckUtils]: 8: Hoare triple {12657#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,477 INFO L280 TraceCheckUtils]: 9: Hoare triple {12657#true} ~p2~0 := #t~nondet1; {12657#true} is VALID [2020-07-18 05:07:29,477 INFO L280 TraceCheckUtils]: 10: Hoare triple {12657#true} havoc #t~nondet1; {12657#true} is VALID [2020-07-18 05:07:29,477 INFO L280 TraceCheckUtils]: 11: Hoare triple {12657#true} havoc ~lk2~0; {12657#true} is VALID [2020-07-18 05:07:29,477 INFO L280 TraceCheckUtils]: 12: Hoare triple {12657#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,477 INFO L280 TraceCheckUtils]: 13: Hoare triple {12657#true} ~p3~0 := #t~nondet2; {12657#true} is VALID [2020-07-18 05:07:29,478 INFO L280 TraceCheckUtils]: 14: Hoare triple {12657#true} havoc #t~nondet2; {12657#true} is VALID [2020-07-18 05:07:29,478 INFO L280 TraceCheckUtils]: 15: Hoare triple {12657#true} havoc ~lk3~0; {12657#true} is VALID [2020-07-18 05:07:29,478 INFO L280 TraceCheckUtils]: 16: Hoare triple {12657#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,478 INFO L280 TraceCheckUtils]: 17: Hoare triple {12657#true} ~p4~0 := #t~nondet3; {12657#true} is VALID [2020-07-18 05:07:29,478 INFO L280 TraceCheckUtils]: 18: Hoare triple {12657#true} havoc #t~nondet3; {12657#true} is VALID [2020-07-18 05:07:29,479 INFO L280 TraceCheckUtils]: 19: Hoare triple {12657#true} havoc ~lk4~0; {12657#true} is VALID [2020-07-18 05:07:29,479 INFO L280 TraceCheckUtils]: 20: Hoare triple {12657#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,479 INFO L280 TraceCheckUtils]: 21: Hoare triple {12657#true} ~p5~0 := #t~nondet4; {12657#true} is VALID [2020-07-18 05:07:29,479 INFO L280 TraceCheckUtils]: 22: Hoare triple {12657#true} havoc #t~nondet4; {12657#true} is VALID [2020-07-18 05:07:29,479 INFO L280 TraceCheckUtils]: 23: Hoare triple {12657#true} havoc ~lk5~0; {12657#true} is VALID [2020-07-18 05:07:29,480 INFO L280 TraceCheckUtils]: 24: Hoare triple {12657#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,480 INFO L280 TraceCheckUtils]: 25: Hoare triple {12657#true} ~p6~0 := #t~nondet5; {12657#true} is VALID [2020-07-18 05:07:29,480 INFO L280 TraceCheckUtils]: 26: Hoare triple {12657#true} havoc #t~nondet5; {12657#true} is VALID [2020-07-18 05:07:29,480 INFO L280 TraceCheckUtils]: 27: Hoare triple {12657#true} havoc ~lk6~0; {12657#true} is VALID [2020-07-18 05:07:29,480 INFO L280 TraceCheckUtils]: 28: Hoare triple {12657#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,481 INFO L280 TraceCheckUtils]: 29: Hoare triple {12657#true} ~p7~0 := #t~nondet6; {12657#true} is VALID [2020-07-18 05:07:29,481 INFO L280 TraceCheckUtils]: 30: Hoare triple {12657#true} havoc #t~nondet6; {12657#true} is VALID [2020-07-18 05:07:29,481 INFO L280 TraceCheckUtils]: 31: Hoare triple {12657#true} havoc ~lk7~0; {12657#true} is VALID [2020-07-18 05:07:29,481 INFO L280 TraceCheckUtils]: 32: Hoare triple {12657#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,481 INFO L280 TraceCheckUtils]: 33: Hoare triple {12657#true} ~p8~0 := #t~nondet7; {12657#true} is VALID [2020-07-18 05:07:29,482 INFO L280 TraceCheckUtils]: 34: Hoare triple {12657#true} havoc #t~nondet7; {12657#true} is VALID [2020-07-18 05:07:29,482 INFO L280 TraceCheckUtils]: 35: Hoare triple {12657#true} havoc ~lk8~0; {12657#true} is VALID [2020-07-18 05:07:29,482 INFO L280 TraceCheckUtils]: 36: Hoare triple {12657#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,482 INFO L280 TraceCheckUtils]: 37: Hoare triple {12657#true} ~p9~0 := #t~nondet8; {12657#true} is VALID [2020-07-18 05:07:29,482 INFO L280 TraceCheckUtils]: 38: Hoare triple {12657#true} havoc #t~nondet8; {12657#true} is VALID [2020-07-18 05:07:29,483 INFO L280 TraceCheckUtils]: 39: Hoare triple {12657#true} havoc ~lk9~0; {12657#true} is VALID [2020-07-18 05:07:29,483 INFO L280 TraceCheckUtils]: 40: Hoare triple {12657#true} havoc ~cond~0; {12657#true} is VALID [2020-07-18 05:07:29,483 INFO L280 TraceCheckUtils]: 41: Hoare triple {12657#true} assume !false; {12657#true} is VALID [2020-07-18 05:07:29,483 INFO L280 TraceCheckUtils]: 42: Hoare triple {12657#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {12657#true} is VALID [2020-07-18 05:07:29,483 INFO L280 TraceCheckUtils]: 43: Hoare triple {12657#true} ~cond~0 := #t~nondet9; {12657#true} is VALID [2020-07-18 05:07:29,483 INFO L280 TraceCheckUtils]: 44: Hoare triple {12657#true} havoc #t~nondet9; {12657#true} is VALID [2020-07-18 05:07:29,484 INFO L280 TraceCheckUtils]: 45: Hoare triple {12657#true} assume !(0 == ~cond~0); {12657#true} is VALID [2020-07-18 05:07:29,484 INFO L280 TraceCheckUtils]: 46: Hoare triple {12657#true} ~lk1~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,484 INFO L280 TraceCheckUtils]: 47: Hoare triple {12657#true} ~lk2~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,484 INFO L280 TraceCheckUtils]: 48: Hoare triple {12657#true} ~lk3~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,484 INFO L280 TraceCheckUtils]: 49: Hoare triple {12657#true} ~lk4~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,485 INFO L280 TraceCheckUtils]: 50: Hoare triple {12657#true} ~lk5~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,485 INFO L280 TraceCheckUtils]: 51: Hoare triple {12657#true} ~lk6~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,485 INFO L280 TraceCheckUtils]: 52: Hoare triple {12657#true} ~lk7~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,485 INFO L280 TraceCheckUtils]: 53: Hoare triple {12657#true} ~lk8~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,485 INFO L280 TraceCheckUtils]: 54: Hoare triple {12657#true} ~lk9~0 := 0; {12657#true} is VALID [2020-07-18 05:07:29,486 INFO L280 TraceCheckUtils]: 55: Hoare triple {12657#true} assume !(0 != ~p1~0); {12657#true} is VALID [2020-07-18 05:07:29,486 INFO L280 TraceCheckUtils]: 56: Hoare triple {12657#true} assume !(0 != ~p2~0); {12657#true} is VALID [2020-07-18 05:07:29,486 INFO L280 TraceCheckUtils]: 57: Hoare triple {12657#true} assume !(0 != ~p3~0); {12657#true} is VALID [2020-07-18 05:07:29,487 INFO L280 TraceCheckUtils]: 58: Hoare triple {12657#true} assume !(0 != ~p4~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,487 INFO L280 TraceCheckUtils]: 59: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p5~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,488 INFO L280 TraceCheckUtils]: 60: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p6~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,488 INFO L280 TraceCheckUtils]: 61: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p7~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,489 INFO L280 TraceCheckUtils]: 62: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p8~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,489 INFO L280 TraceCheckUtils]: 63: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p9~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,490 INFO L280 TraceCheckUtils]: 64: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p1~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,490 INFO L280 TraceCheckUtils]: 65: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p2~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,491 INFO L280 TraceCheckUtils]: 66: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p3~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 05:07:29,491 INFO L280 TraceCheckUtils]: 67: Hoare triple {12661#(= 0 main_~p4~0)} assume 0 != ~p4~0; {12658#false} is VALID [2020-07-18 05:07:29,492 INFO L280 TraceCheckUtils]: 68: Hoare triple {12658#false} assume 1 != ~lk4~0; {12658#false} is VALID [2020-07-18 05:07:29,492 INFO L280 TraceCheckUtils]: 69: Hoare triple {12658#false} assume !false; {12658#false} is VALID [2020-07-18 05:07:29,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:29,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281793535] [2020-07-18 05:07:29,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:29,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:29,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426095796] [2020-07-18 05:07:29,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-18 05:07:29,496 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:29,496 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:29,555 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:29,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:29,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:29,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:29,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:29,556 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand 3 states. [2020-07-18 05:07:31,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:31,468 INFO L93 Difference]: Finished difference Result 1331 states and 1824 transitions. [2020-07-18 05:07:31,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:31,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-18 05:07:31,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:31,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-18 05:07:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-18 05:07:31,478 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 289 transitions. [2020-07-18 05:07:31,827 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 289 edges. 289 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:31,924 INFO L225 Difference]: With dead ends: 1331 [2020-07-18 05:07:31,925 INFO L226 Difference]: Without dead ends: 893 [2020-07-18 05:07:31,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:31,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-07-18 05:07:33,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 891. [2020-07-18 05:07:33,495 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:33,495 INFO L82 GeneralOperation]: Start isEquivalent. First operand 893 states. Second operand 891 states. [2020-07-18 05:07:33,495 INFO L74 IsIncluded]: Start isIncluded. First operand 893 states. Second operand 891 states. [2020-07-18 05:07:33,495 INFO L87 Difference]: Start difference. First operand 893 states. Second operand 891 states. [2020-07-18 05:07:33,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:33,550 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-18 05:07:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-18 05:07:33,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:33,553 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:33,553 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 893 states. [2020-07-18 05:07:33,553 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 893 states. [2020-07-18 05:07:33,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:33,609 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-18 05:07:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-18 05:07:33,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:33,611 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:33,612 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:33,612 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:33,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-18 05:07:33,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1202 transitions. [2020-07-18 05:07:33,661 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1202 transitions. Word has length 70 [2020-07-18 05:07:33,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:33,661 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1202 transitions. [2020-07-18 05:07:33,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:33,662 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1202 transitions. [2020-07-18 05:07:35,221 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1202 edges. 1202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1202 transitions. [2020-07-18 05:07:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-18 05:07:35,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:35,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:35,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-18 05:07:35,225 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:35,225 INFO L82 PathProgramCache]: Analyzing trace with hash 490835914, now seen corresponding path program 1 times [2020-07-18 05:07:35,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:35,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424830466] [2020-07-18 05:07:35,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:35,325 INFO L280 TraceCheckUtils]: 0: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-18 05:07:35,325 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-18 05:07:35,325 INFO L263 TraceCheckUtils]: 0: Hoare triple {18894#true} call ULTIMATE.init(); {18894#true} is VALID [2020-07-18 05:07:35,326 INFO L280 TraceCheckUtils]: 1: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-18 05:07:35,326 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-18 05:07:35,326 INFO L263 TraceCheckUtils]: 3: Hoare triple {18894#true} call #t~ret10 := main(); {18894#true} is VALID [2020-07-18 05:07:35,326 INFO L280 TraceCheckUtils]: 4: Hoare triple {18894#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,327 INFO L280 TraceCheckUtils]: 5: Hoare triple {18894#true} ~p1~0 := #t~nondet0; {18894#true} is VALID [2020-07-18 05:07:35,327 INFO L280 TraceCheckUtils]: 6: Hoare triple {18894#true} havoc #t~nondet0; {18894#true} is VALID [2020-07-18 05:07:35,327 INFO L280 TraceCheckUtils]: 7: Hoare triple {18894#true} havoc ~lk1~0; {18894#true} is VALID [2020-07-18 05:07:35,327 INFO L280 TraceCheckUtils]: 8: Hoare triple {18894#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,327 INFO L280 TraceCheckUtils]: 9: Hoare triple {18894#true} ~p2~0 := #t~nondet1; {18894#true} is VALID [2020-07-18 05:07:35,328 INFO L280 TraceCheckUtils]: 10: Hoare triple {18894#true} havoc #t~nondet1; {18894#true} is VALID [2020-07-18 05:07:35,328 INFO L280 TraceCheckUtils]: 11: Hoare triple {18894#true} havoc ~lk2~0; {18894#true} is VALID [2020-07-18 05:07:35,328 INFO L280 TraceCheckUtils]: 12: Hoare triple {18894#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,328 INFO L280 TraceCheckUtils]: 13: Hoare triple {18894#true} ~p3~0 := #t~nondet2; {18894#true} is VALID [2020-07-18 05:07:35,329 INFO L280 TraceCheckUtils]: 14: Hoare triple {18894#true} havoc #t~nondet2; {18894#true} is VALID [2020-07-18 05:07:35,329 INFO L280 TraceCheckUtils]: 15: Hoare triple {18894#true} havoc ~lk3~0; {18894#true} is VALID [2020-07-18 05:07:35,329 INFO L280 TraceCheckUtils]: 16: Hoare triple {18894#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,329 INFO L280 TraceCheckUtils]: 17: Hoare triple {18894#true} ~p4~0 := #t~nondet3; {18894#true} is VALID [2020-07-18 05:07:35,330 INFO L280 TraceCheckUtils]: 18: Hoare triple {18894#true} havoc #t~nondet3; {18894#true} is VALID [2020-07-18 05:07:35,330 INFO L280 TraceCheckUtils]: 19: Hoare triple {18894#true} havoc ~lk4~0; {18894#true} is VALID [2020-07-18 05:07:35,330 INFO L280 TraceCheckUtils]: 20: Hoare triple {18894#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,330 INFO L280 TraceCheckUtils]: 21: Hoare triple {18894#true} ~p5~0 := #t~nondet4; {18894#true} is VALID [2020-07-18 05:07:35,330 INFO L280 TraceCheckUtils]: 22: Hoare triple {18894#true} havoc #t~nondet4; {18894#true} is VALID [2020-07-18 05:07:35,331 INFO L280 TraceCheckUtils]: 23: Hoare triple {18894#true} havoc ~lk5~0; {18894#true} is VALID [2020-07-18 05:07:35,331 INFO L280 TraceCheckUtils]: 24: Hoare triple {18894#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,331 INFO L280 TraceCheckUtils]: 25: Hoare triple {18894#true} ~p6~0 := #t~nondet5; {18894#true} is VALID [2020-07-18 05:07:35,331 INFO L280 TraceCheckUtils]: 26: Hoare triple {18894#true} havoc #t~nondet5; {18894#true} is VALID [2020-07-18 05:07:35,332 INFO L280 TraceCheckUtils]: 27: Hoare triple {18894#true} havoc ~lk6~0; {18894#true} is VALID [2020-07-18 05:07:35,332 INFO L280 TraceCheckUtils]: 28: Hoare triple {18894#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,332 INFO L280 TraceCheckUtils]: 29: Hoare triple {18894#true} ~p7~0 := #t~nondet6; {18894#true} is VALID [2020-07-18 05:07:35,332 INFO L280 TraceCheckUtils]: 30: Hoare triple {18894#true} havoc #t~nondet6; {18894#true} is VALID [2020-07-18 05:07:35,332 INFO L280 TraceCheckUtils]: 31: Hoare triple {18894#true} havoc ~lk7~0; {18894#true} is VALID [2020-07-18 05:07:35,333 INFO L280 TraceCheckUtils]: 32: Hoare triple {18894#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,333 INFO L280 TraceCheckUtils]: 33: Hoare triple {18894#true} ~p8~0 := #t~nondet7; {18894#true} is VALID [2020-07-18 05:07:35,333 INFO L280 TraceCheckUtils]: 34: Hoare triple {18894#true} havoc #t~nondet7; {18894#true} is VALID [2020-07-18 05:07:35,333 INFO L280 TraceCheckUtils]: 35: Hoare triple {18894#true} havoc ~lk8~0; {18894#true} is VALID [2020-07-18 05:07:35,333 INFO L280 TraceCheckUtils]: 36: Hoare triple {18894#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,334 INFO L280 TraceCheckUtils]: 37: Hoare triple {18894#true} ~p9~0 := #t~nondet8; {18894#true} is VALID [2020-07-18 05:07:35,334 INFO L280 TraceCheckUtils]: 38: Hoare triple {18894#true} havoc #t~nondet8; {18894#true} is VALID [2020-07-18 05:07:35,334 INFO L280 TraceCheckUtils]: 39: Hoare triple {18894#true} havoc ~lk9~0; {18894#true} is VALID [2020-07-18 05:07:35,334 INFO L280 TraceCheckUtils]: 40: Hoare triple {18894#true} havoc ~cond~0; {18894#true} is VALID [2020-07-18 05:07:35,334 INFO L280 TraceCheckUtils]: 41: Hoare triple {18894#true} assume !false; {18894#true} is VALID [2020-07-18 05:07:35,335 INFO L280 TraceCheckUtils]: 42: Hoare triple {18894#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {18894#true} is VALID [2020-07-18 05:07:35,335 INFO L280 TraceCheckUtils]: 43: Hoare triple {18894#true} ~cond~0 := #t~nondet9; {18894#true} is VALID [2020-07-18 05:07:35,335 INFO L280 TraceCheckUtils]: 44: Hoare triple {18894#true} havoc #t~nondet9; {18894#true} is VALID [2020-07-18 05:07:35,335 INFO L280 TraceCheckUtils]: 45: Hoare triple {18894#true} assume !(0 == ~cond~0); {18894#true} is VALID [2020-07-18 05:07:35,336 INFO L280 TraceCheckUtils]: 46: Hoare triple {18894#true} ~lk1~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,336 INFO L280 TraceCheckUtils]: 47: Hoare triple {18894#true} ~lk2~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,336 INFO L280 TraceCheckUtils]: 48: Hoare triple {18894#true} ~lk3~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,336 INFO L280 TraceCheckUtils]: 49: Hoare triple {18894#true} ~lk4~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,336 INFO L280 TraceCheckUtils]: 50: Hoare triple {18894#true} ~lk5~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,337 INFO L280 TraceCheckUtils]: 51: Hoare triple {18894#true} ~lk6~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,337 INFO L280 TraceCheckUtils]: 52: Hoare triple {18894#true} ~lk7~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,337 INFO L280 TraceCheckUtils]: 53: Hoare triple {18894#true} ~lk8~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,337 INFO L280 TraceCheckUtils]: 54: Hoare triple {18894#true} ~lk9~0 := 0; {18894#true} is VALID [2020-07-18 05:07:35,337 INFO L280 TraceCheckUtils]: 55: Hoare triple {18894#true} assume !(0 != ~p1~0); {18894#true} is VALID [2020-07-18 05:07:35,338 INFO L280 TraceCheckUtils]: 56: Hoare triple {18894#true} assume !(0 != ~p2~0); {18894#true} is VALID [2020-07-18 05:07:35,338 INFO L280 TraceCheckUtils]: 57: Hoare triple {18894#true} assume !(0 != ~p3~0); {18894#true} is VALID [2020-07-18 05:07:35,338 INFO L280 TraceCheckUtils]: 58: Hoare triple {18894#true} assume 0 != ~p4~0; {18894#true} is VALID [2020-07-18 05:07:35,339 INFO L280 TraceCheckUtils]: 59: Hoare triple {18894#true} ~lk4~0 := 1; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,339 INFO L280 TraceCheckUtils]: 60: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p5~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,340 INFO L280 TraceCheckUtils]: 61: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p6~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,340 INFO L280 TraceCheckUtils]: 62: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p7~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,341 INFO L280 TraceCheckUtils]: 63: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p8~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,341 INFO L280 TraceCheckUtils]: 64: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p9~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,342 INFO L280 TraceCheckUtils]: 65: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p1~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,342 INFO L280 TraceCheckUtils]: 66: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p2~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,343 INFO L280 TraceCheckUtils]: 67: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p3~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,343 INFO L280 TraceCheckUtils]: 68: Hoare triple {18898#(= 1 main_~lk4~0)} assume 0 != ~p4~0; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 05:07:35,344 INFO L280 TraceCheckUtils]: 69: Hoare triple {18898#(= 1 main_~lk4~0)} assume 1 != ~lk4~0; {18895#false} is VALID [2020-07-18 05:07:35,344 INFO L280 TraceCheckUtils]: 70: Hoare triple {18895#false} assume !false; {18895#false} is VALID [2020-07-18 05:07:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:35,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424830466] [2020-07-18 05:07:35,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:35,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:35,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333920382] [2020-07-18 05:07:35,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-18 05:07:35,349 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:35,349 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:35,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:35,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:35,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:35,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:35,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:35,404 INFO L87 Difference]: Start difference. First operand 891 states and 1202 transitions. Second operand 3 states. [2020-07-18 05:07:37,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:37,605 INFO L93 Difference]: Finished difference Result 1087 states and 1476 transitions. [2020-07-18 05:07:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:37,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-18 05:07:37,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:37,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-18 05:07:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-18 05:07:37,610 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 189 transitions. [2020-07-18 05:07:37,768 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:37,853 INFO L225 Difference]: With dead ends: 1087 [2020-07-18 05:07:37,853 INFO L226 Difference]: Without dead ends: 1085 [2020-07-18 05:07:37,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-07-18 05:07:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 891. [2020-07-18 05:07:39,392 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:39,392 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1085 states. Second operand 891 states. [2020-07-18 05:07:39,392 INFO L74 IsIncluded]: Start isIncluded. First operand 1085 states. Second operand 891 states. [2020-07-18 05:07:39,392 INFO L87 Difference]: Start difference. First operand 1085 states. Second operand 891 states. [2020-07-18 05:07:39,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:39,454 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-18 05:07:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-18 05:07:39,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:39,457 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:39,457 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 1085 states. [2020-07-18 05:07:39,457 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 1085 states. [2020-07-18 05:07:39,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:39,525 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-18 05:07:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-18 05:07:39,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:39,528 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:39,528 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:39,529 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:39,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-18 05:07:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1194 transitions. [2020-07-18 05:07:39,580 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1194 transitions. Word has length 71 [2020-07-18 05:07:39,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:39,581 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1194 transitions. [2020-07-18 05:07:39,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:39,581 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1194 transitions. [2020-07-18 05:07:40,985 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1194 edges. 1194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:40,985 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1194 transitions. [2020-07-18 05:07:40,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-18 05:07:40,987 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:40,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:40,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-18 05:07:40,988 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:40,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:40,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1665621348, now seen corresponding path program 1 times [2020-07-18 05:07:40,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:40,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834349573] [2020-07-18 05:07:40,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:41,039 INFO L280 TraceCheckUtils]: 0: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-18 05:07:41,040 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-18 05:07:41,040 INFO L263 TraceCheckUtils]: 0: Hoare triple {25027#true} call ULTIMATE.init(); {25027#true} is VALID [2020-07-18 05:07:41,040 INFO L280 TraceCheckUtils]: 1: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-18 05:07:41,041 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-18 05:07:41,041 INFO L263 TraceCheckUtils]: 3: Hoare triple {25027#true} call #t~ret10 := main(); {25027#true} is VALID [2020-07-18 05:07:41,041 INFO L280 TraceCheckUtils]: 4: Hoare triple {25027#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,041 INFO L280 TraceCheckUtils]: 5: Hoare triple {25027#true} ~p1~0 := #t~nondet0; {25027#true} is VALID [2020-07-18 05:07:41,041 INFO L280 TraceCheckUtils]: 6: Hoare triple {25027#true} havoc #t~nondet0; {25027#true} is VALID [2020-07-18 05:07:41,042 INFO L280 TraceCheckUtils]: 7: Hoare triple {25027#true} havoc ~lk1~0; {25027#true} is VALID [2020-07-18 05:07:41,042 INFO L280 TraceCheckUtils]: 8: Hoare triple {25027#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,042 INFO L280 TraceCheckUtils]: 9: Hoare triple {25027#true} ~p2~0 := #t~nondet1; {25027#true} is VALID [2020-07-18 05:07:41,042 INFO L280 TraceCheckUtils]: 10: Hoare triple {25027#true} havoc #t~nondet1; {25027#true} is VALID [2020-07-18 05:07:41,042 INFO L280 TraceCheckUtils]: 11: Hoare triple {25027#true} havoc ~lk2~0; {25027#true} is VALID [2020-07-18 05:07:41,043 INFO L280 TraceCheckUtils]: 12: Hoare triple {25027#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,043 INFO L280 TraceCheckUtils]: 13: Hoare triple {25027#true} ~p3~0 := #t~nondet2; {25027#true} is VALID [2020-07-18 05:07:41,043 INFO L280 TraceCheckUtils]: 14: Hoare triple {25027#true} havoc #t~nondet2; {25027#true} is VALID [2020-07-18 05:07:41,043 INFO L280 TraceCheckUtils]: 15: Hoare triple {25027#true} havoc ~lk3~0; {25027#true} is VALID [2020-07-18 05:07:41,043 INFO L280 TraceCheckUtils]: 16: Hoare triple {25027#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,044 INFO L280 TraceCheckUtils]: 17: Hoare triple {25027#true} ~p4~0 := #t~nondet3; {25027#true} is VALID [2020-07-18 05:07:41,044 INFO L280 TraceCheckUtils]: 18: Hoare triple {25027#true} havoc #t~nondet3; {25027#true} is VALID [2020-07-18 05:07:41,044 INFO L280 TraceCheckUtils]: 19: Hoare triple {25027#true} havoc ~lk4~0; {25027#true} is VALID [2020-07-18 05:07:41,044 INFO L280 TraceCheckUtils]: 20: Hoare triple {25027#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,044 INFO L280 TraceCheckUtils]: 21: Hoare triple {25027#true} ~p5~0 := #t~nondet4; {25027#true} is VALID [2020-07-18 05:07:41,044 INFO L280 TraceCheckUtils]: 22: Hoare triple {25027#true} havoc #t~nondet4; {25027#true} is VALID [2020-07-18 05:07:41,044 INFO L280 TraceCheckUtils]: 23: Hoare triple {25027#true} havoc ~lk5~0; {25027#true} is VALID [2020-07-18 05:07:41,045 INFO L280 TraceCheckUtils]: 24: Hoare triple {25027#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,045 INFO L280 TraceCheckUtils]: 25: Hoare triple {25027#true} ~p6~0 := #t~nondet5; {25027#true} is VALID [2020-07-18 05:07:41,045 INFO L280 TraceCheckUtils]: 26: Hoare triple {25027#true} havoc #t~nondet5; {25027#true} is VALID [2020-07-18 05:07:41,045 INFO L280 TraceCheckUtils]: 27: Hoare triple {25027#true} havoc ~lk6~0; {25027#true} is VALID [2020-07-18 05:07:41,045 INFO L280 TraceCheckUtils]: 28: Hoare triple {25027#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,045 INFO L280 TraceCheckUtils]: 29: Hoare triple {25027#true} ~p7~0 := #t~nondet6; {25027#true} is VALID [2020-07-18 05:07:41,045 INFO L280 TraceCheckUtils]: 30: Hoare triple {25027#true} havoc #t~nondet6; {25027#true} is VALID [2020-07-18 05:07:41,046 INFO L280 TraceCheckUtils]: 31: Hoare triple {25027#true} havoc ~lk7~0; {25027#true} is VALID [2020-07-18 05:07:41,046 INFO L280 TraceCheckUtils]: 32: Hoare triple {25027#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,046 INFO L280 TraceCheckUtils]: 33: Hoare triple {25027#true} ~p8~0 := #t~nondet7; {25027#true} is VALID [2020-07-18 05:07:41,046 INFO L280 TraceCheckUtils]: 34: Hoare triple {25027#true} havoc #t~nondet7; {25027#true} is VALID [2020-07-18 05:07:41,046 INFO L280 TraceCheckUtils]: 35: Hoare triple {25027#true} havoc ~lk8~0; {25027#true} is VALID [2020-07-18 05:07:41,046 INFO L280 TraceCheckUtils]: 36: Hoare triple {25027#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,047 INFO L280 TraceCheckUtils]: 37: Hoare triple {25027#true} ~p9~0 := #t~nondet8; {25027#true} is VALID [2020-07-18 05:07:41,047 INFO L280 TraceCheckUtils]: 38: Hoare triple {25027#true} havoc #t~nondet8; {25027#true} is VALID [2020-07-18 05:07:41,047 INFO L280 TraceCheckUtils]: 39: Hoare triple {25027#true} havoc ~lk9~0; {25027#true} is VALID [2020-07-18 05:07:41,047 INFO L280 TraceCheckUtils]: 40: Hoare triple {25027#true} havoc ~cond~0; {25027#true} is VALID [2020-07-18 05:07:41,047 INFO L280 TraceCheckUtils]: 41: Hoare triple {25027#true} assume !false; {25027#true} is VALID [2020-07-18 05:07:41,048 INFO L280 TraceCheckUtils]: 42: Hoare triple {25027#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {25027#true} is VALID [2020-07-18 05:07:41,048 INFO L280 TraceCheckUtils]: 43: Hoare triple {25027#true} ~cond~0 := #t~nondet9; {25027#true} is VALID [2020-07-18 05:07:41,048 INFO L280 TraceCheckUtils]: 44: Hoare triple {25027#true} havoc #t~nondet9; {25027#true} is VALID [2020-07-18 05:07:41,048 INFO L280 TraceCheckUtils]: 45: Hoare triple {25027#true} assume !(0 == ~cond~0); {25027#true} is VALID [2020-07-18 05:07:41,048 INFO L280 TraceCheckUtils]: 46: Hoare triple {25027#true} ~lk1~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,049 INFO L280 TraceCheckUtils]: 47: Hoare triple {25027#true} ~lk2~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,049 INFO L280 TraceCheckUtils]: 48: Hoare triple {25027#true} ~lk3~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,049 INFO L280 TraceCheckUtils]: 49: Hoare triple {25027#true} ~lk4~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,049 INFO L280 TraceCheckUtils]: 50: Hoare triple {25027#true} ~lk5~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,049 INFO L280 TraceCheckUtils]: 51: Hoare triple {25027#true} ~lk6~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,050 INFO L280 TraceCheckUtils]: 52: Hoare triple {25027#true} ~lk7~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,050 INFO L280 TraceCheckUtils]: 53: Hoare triple {25027#true} ~lk8~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,050 INFO L280 TraceCheckUtils]: 54: Hoare triple {25027#true} ~lk9~0 := 0; {25027#true} is VALID [2020-07-18 05:07:41,050 INFO L280 TraceCheckUtils]: 55: Hoare triple {25027#true} assume !(0 != ~p1~0); {25027#true} is VALID [2020-07-18 05:07:41,050 INFO L280 TraceCheckUtils]: 56: Hoare triple {25027#true} assume !(0 != ~p2~0); {25027#true} is VALID [2020-07-18 05:07:41,051 INFO L280 TraceCheckUtils]: 57: Hoare triple {25027#true} assume !(0 != ~p3~0); {25027#true} is VALID [2020-07-18 05:07:41,051 INFO L280 TraceCheckUtils]: 58: Hoare triple {25027#true} assume !(0 != ~p4~0); {25027#true} is VALID [2020-07-18 05:07:41,052 INFO L280 TraceCheckUtils]: 59: Hoare triple {25027#true} assume !(0 != ~p5~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,053 INFO L280 TraceCheckUtils]: 60: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p6~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,053 INFO L280 TraceCheckUtils]: 61: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p7~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,054 INFO L280 TraceCheckUtils]: 62: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p8~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,054 INFO L280 TraceCheckUtils]: 63: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p9~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,055 INFO L280 TraceCheckUtils]: 64: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p1~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,056 INFO L280 TraceCheckUtils]: 65: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p2~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,056 INFO L280 TraceCheckUtils]: 66: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p3~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,057 INFO L280 TraceCheckUtils]: 67: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p4~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 05:07:41,057 INFO L280 TraceCheckUtils]: 68: Hoare triple {25031#(= 0 main_~p5~0)} assume 0 != ~p5~0; {25028#false} is VALID [2020-07-18 05:07:41,057 INFO L280 TraceCheckUtils]: 69: Hoare triple {25028#false} assume 1 != ~lk5~0; {25028#false} is VALID [2020-07-18 05:07:41,058 INFO L280 TraceCheckUtils]: 70: Hoare triple {25028#false} assume !false; {25028#false} is VALID [2020-07-18 05:07:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:41,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834349573] [2020-07-18 05:07:41,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:41,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:41,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019048291] [2020-07-18 05:07:41,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-18 05:07:41,062 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:41,062 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:41,120 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:41,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:41,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:41,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:41,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:41,121 INFO L87 Difference]: Start difference. First operand 891 states and 1194 transitions. Second operand 3 states. [2020-07-18 05:07:45,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:45,036 INFO L93 Difference]: Finished difference Result 2543 states and 3436 transitions. [2020-07-18 05:07:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:45,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-18 05:07:45,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:45,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:45,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-18 05:07:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-18 05:07:45,041 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-18 05:07:45,323 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 286 edges. 286 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:45,441 INFO L225 Difference]: With dead ends: 2543 [2020-07-18 05:07:45,441 INFO L226 Difference]: Without dead ends: 1693 [2020-07-18 05:07:45,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:45,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2020-07-18 05:07:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1691. [2020-07-18 05:07:48,829 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:07:48,830 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1693 states. Second operand 1691 states. [2020-07-18 05:07:48,830 INFO L74 IsIncluded]: Start isIncluded. First operand 1693 states. Second operand 1691 states. [2020-07-18 05:07:48,830 INFO L87 Difference]: Start difference. First operand 1693 states. Second operand 1691 states. [2020-07-18 05:07:48,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:48,925 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-18 05:07:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-18 05:07:48,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:48,928 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:48,928 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 1693 states. [2020-07-18 05:07:48,929 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 1693 states. [2020-07-18 05:07:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:49,066 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-18 05:07:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-18 05:07:49,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:07:49,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:07:49,069 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:07:49,069 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:07:49,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-18 05:07:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2250 transitions. [2020-07-18 05:07:49,191 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2250 transitions. Word has length 71 [2020-07-18 05:07:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:07:49,191 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2250 transitions. [2020-07-18 05:07:49,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:07:49,191 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2250 transitions. [2020-07-18 05:07:51,902 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2250 edges. 2250 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:51,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2250 transitions. [2020-07-18 05:07:51,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-18 05:07:51,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:07:51,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:07:51,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-18 05:07:51,905 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:07:51,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:07:51,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1204002519, now seen corresponding path program 1 times [2020-07-18 05:07:51,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:07:51,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809934958] [2020-07-18 05:07:51,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:07:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:07:51,945 INFO L280 TraceCheckUtils]: 0: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-18 05:07:51,946 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-18 05:07:51,946 INFO L263 TraceCheckUtils]: 0: Hoare triple {36888#true} call ULTIMATE.init(); {36888#true} is VALID [2020-07-18 05:07:51,946 INFO L280 TraceCheckUtils]: 1: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-18 05:07:51,946 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-18 05:07:51,946 INFO L263 TraceCheckUtils]: 3: Hoare triple {36888#true} call #t~ret10 := main(); {36888#true} is VALID [2020-07-18 05:07:51,947 INFO L280 TraceCheckUtils]: 4: Hoare triple {36888#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,947 INFO L280 TraceCheckUtils]: 5: Hoare triple {36888#true} ~p1~0 := #t~nondet0; {36888#true} is VALID [2020-07-18 05:07:51,947 INFO L280 TraceCheckUtils]: 6: Hoare triple {36888#true} havoc #t~nondet0; {36888#true} is VALID [2020-07-18 05:07:51,947 INFO L280 TraceCheckUtils]: 7: Hoare triple {36888#true} havoc ~lk1~0; {36888#true} is VALID [2020-07-18 05:07:51,947 INFO L280 TraceCheckUtils]: 8: Hoare triple {36888#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,947 INFO L280 TraceCheckUtils]: 9: Hoare triple {36888#true} ~p2~0 := #t~nondet1; {36888#true} is VALID [2020-07-18 05:07:51,948 INFO L280 TraceCheckUtils]: 10: Hoare triple {36888#true} havoc #t~nondet1; {36888#true} is VALID [2020-07-18 05:07:51,948 INFO L280 TraceCheckUtils]: 11: Hoare triple {36888#true} havoc ~lk2~0; {36888#true} is VALID [2020-07-18 05:07:51,948 INFO L280 TraceCheckUtils]: 12: Hoare triple {36888#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,948 INFO L280 TraceCheckUtils]: 13: Hoare triple {36888#true} ~p3~0 := #t~nondet2; {36888#true} is VALID [2020-07-18 05:07:51,948 INFO L280 TraceCheckUtils]: 14: Hoare triple {36888#true} havoc #t~nondet2; {36888#true} is VALID [2020-07-18 05:07:51,949 INFO L280 TraceCheckUtils]: 15: Hoare triple {36888#true} havoc ~lk3~0; {36888#true} is VALID [2020-07-18 05:07:51,949 INFO L280 TraceCheckUtils]: 16: Hoare triple {36888#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,949 INFO L280 TraceCheckUtils]: 17: Hoare triple {36888#true} ~p4~0 := #t~nondet3; {36888#true} is VALID [2020-07-18 05:07:51,949 INFO L280 TraceCheckUtils]: 18: Hoare triple {36888#true} havoc #t~nondet3; {36888#true} is VALID [2020-07-18 05:07:51,949 INFO L280 TraceCheckUtils]: 19: Hoare triple {36888#true} havoc ~lk4~0; {36888#true} is VALID [2020-07-18 05:07:51,949 INFO L280 TraceCheckUtils]: 20: Hoare triple {36888#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,950 INFO L280 TraceCheckUtils]: 21: Hoare triple {36888#true} ~p5~0 := #t~nondet4; {36888#true} is VALID [2020-07-18 05:07:51,950 INFO L280 TraceCheckUtils]: 22: Hoare triple {36888#true} havoc #t~nondet4; {36888#true} is VALID [2020-07-18 05:07:51,950 INFO L280 TraceCheckUtils]: 23: Hoare triple {36888#true} havoc ~lk5~0; {36888#true} is VALID [2020-07-18 05:07:51,950 INFO L280 TraceCheckUtils]: 24: Hoare triple {36888#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,950 INFO L280 TraceCheckUtils]: 25: Hoare triple {36888#true} ~p6~0 := #t~nondet5; {36888#true} is VALID [2020-07-18 05:07:51,951 INFO L280 TraceCheckUtils]: 26: Hoare triple {36888#true} havoc #t~nondet5; {36888#true} is VALID [2020-07-18 05:07:51,951 INFO L280 TraceCheckUtils]: 27: Hoare triple {36888#true} havoc ~lk6~0; {36888#true} is VALID [2020-07-18 05:07:51,951 INFO L280 TraceCheckUtils]: 28: Hoare triple {36888#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,951 INFO L280 TraceCheckUtils]: 29: Hoare triple {36888#true} ~p7~0 := #t~nondet6; {36888#true} is VALID [2020-07-18 05:07:51,951 INFO L280 TraceCheckUtils]: 30: Hoare triple {36888#true} havoc #t~nondet6; {36888#true} is VALID [2020-07-18 05:07:51,951 INFO L280 TraceCheckUtils]: 31: Hoare triple {36888#true} havoc ~lk7~0; {36888#true} is VALID [2020-07-18 05:07:51,952 INFO L280 TraceCheckUtils]: 32: Hoare triple {36888#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,952 INFO L280 TraceCheckUtils]: 33: Hoare triple {36888#true} ~p8~0 := #t~nondet7; {36888#true} is VALID [2020-07-18 05:07:51,952 INFO L280 TraceCheckUtils]: 34: Hoare triple {36888#true} havoc #t~nondet7; {36888#true} is VALID [2020-07-18 05:07:51,952 INFO L280 TraceCheckUtils]: 35: Hoare triple {36888#true} havoc ~lk8~0; {36888#true} is VALID [2020-07-18 05:07:51,952 INFO L280 TraceCheckUtils]: 36: Hoare triple {36888#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,952 INFO L280 TraceCheckUtils]: 37: Hoare triple {36888#true} ~p9~0 := #t~nondet8; {36888#true} is VALID [2020-07-18 05:07:51,953 INFO L280 TraceCheckUtils]: 38: Hoare triple {36888#true} havoc #t~nondet8; {36888#true} is VALID [2020-07-18 05:07:51,953 INFO L280 TraceCheckUtils]: 39: Hoare triple {36888#true} havoc ~lk9~0; {36888#true} is VALID [2020-07-18 05:07:51,953 INFO L280 TraceCheckUtils]: 40: Hoare triple {36888#true} havoc ~cond~0; {36888#true} is VALID [2020-07-18 05:07:51,953 INFO L280 TraceCheckUtils]: 41: Hoare triple {36888#true} assume !false; {36888#true} is VALID [2020-07-18 05:07:51,953 INFO L280 TraceCheckUtils]: 42: Hoare triple {36888#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {36888#true} is VALID [2020-07-18 05:07:51,954 INFO L280 TraceCheckUtils]: 43: Hoare triple {36888#true} ~cond~0 := #t~nondet9; {36888#true} is VALID [2020-07-18 05:07:51,954 INFO L280 TraceCheckUtils]: 44: Hoare triple {36888#true} havoc #t~nondet9; {36888#true} is VALID [2020-07-18 05:07:51,954 INFO L280 TraceCheckUtils]: 45: Hoare triple {36888#true} assume !(0 == ~cond~0); {36888#true} is VALID [2020-07-18 05:07:51,954 INFO L280 TraceCheckUtils]: 46: Hoare triple {36888#true} ~lk1~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,954 INFO L280 TraceCheckUtils]: 47: Hoare triple {36888#true} ~lk2~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,955 INFO L280 TraceCheckUtils]: 48: Hoare triple {36888#true} ~lk3~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,955 INFO L280 TraceCheckUtils]: 49: Hoare triple {36888#true} ~lk4~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,955 INFO L280 TraceCheckUtils]: 50: Hoare triple {36888#true} ~lk5~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,955 INFO L280 TraceCheckUtils]: 51: Hoare triple {36888#true} ~lk6~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,955 INFO L280 TraceCheckUtils]: 52: Hoare triple {36888#true} ~lk7~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,955 INFO L280 TraceCheckUtils]: 53: Hoare triple {36888#true} ~lk8~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,956 INFO L280 TraceCheckUtils]: 54: Hoare triple {36888#true} ~lk9~0 := 0; {36888#true} is VALID [2020-07-18 05:07:51,956 INFO L280 TraceCheckUtils]: 55: Hoare triple {36888#true} assume !(0 != ~p1~0); {36888#true} is VALID [2020-07-18 05:07:51,956 INFO L280 TraceCheckUtils]: 56: Hoare triple {36888#true} assume !(0 != ~p2~0); {36888#true} is VALID [2020-07-18 05:07:51,956 INFO L280 TraceCheckUtils]: 57: Hoare triple {36888#true} assume !(0 != ~p3~0); {36888#true} is VALID [2020-07-18 05:07:51,956 INFO L280 TraceCheckUtils]: 58: Hoare triple {36888#true} assume !(0 != ~p4~0); {36888#true} is VALID [2020-07-18 05:07:51,957 INFO L280 TraceCheckUtils]: 59: Hoare triple {36888#true} assume 0 != ~p5~0; {36888#true} is VALID [2020-07-18 05:07:51,964 INFO L280 TraceCheckUtils]: 60: Hoare triple {36888#true} ~lk5~0 := 1; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,965 INFO L280 TraceCheckUtils]: 61: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p6~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,966 INFO L280 TraceCheckUtils]: 62: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p7~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,966 INFO L280 TraceCheckUtils]: 63: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p8~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,967 INFO L280 TraceCheckUtils]: 64: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p9~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,968 INFO L280 TraceCheckUtils]: 65: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p1~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,968 INFO L280 TraceCheckUtils]: 66: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p2~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,969 INFO L280 TraceCheckUtils]: 67: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p3~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,969 INFO L280 TraceCheckUtils]: 68: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p4~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,969 INFO L280 TraceCheckUtils]: 69: Hoare triple {36892#(= 1 main_~lk5~0)} assume 0 != ~p5~0; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 05:07:51,970 INFO L280 TraceCheckUtils]: 70: Hoare triple {36892#(= 1 main_~lk5~0)} assume 1 != ~lk5~0; {36889#false} is VALID [2020-07-18 05:07:51,970 INFO L280 TraceCheckUtils]: 71: Hoare triple {36889#false} assume !false; {36889#false} is VALID [2020-07-18 05:07:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:07:51,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809934958] [2020-07-18 05:07:51,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:07:51,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:07:51,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751228259] [2020-07-18 05:07:51,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-18 05:07:51,973 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:07:51,973 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:07:52,035 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:52,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:07:52,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:07:52,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:07:52,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:52,037 INFO L87 Difference]: Start difference. First operand 1691 states and 2250 transitions. Second operand 3 states. [2020-07-18 05:07:56,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:07:56,623 INFO L93 Difference]: Finished difference Result 2047 states and 2732 transitions. [2020-07-18 05:07:56,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:07:56,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-18 05:07:56,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:07:56,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-18 05:07:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:07:56,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-18 05:07:56,627 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 185 transitions. [2020-07-18 05:07:56,792 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:07:56,938 INFO L225 Difference]: With dead ends: 2047 [2020-07-18 05:07:56,938 INFO L226 Difference]: Without dead ends: 2045 [2020-07-18 05:07:56,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:07:56,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-07-18 05:08:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1691. [2020-07-18 05:08:00,565 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:08:00,566 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2045 states. Second operand 1691 states. [2020-07-18 05:08:00,566 INFO L74 IsIncluded]: Start isIncluded. First operand 2045 states. Second operand 1691 states. [2020-07-18 05:08:00,566 INFO L87 Difference]: Start difference. First operand 2045 states. Second operand 1691 states. [2020-07-18 05:08:00,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:08:00,689 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-18 05:08:00,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-18 05:08:00,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:08:00,692 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:08:00,692 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 2045 states. [2020-07-18 05:08:00,692 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 2045 states. [2020-07-18 05:08:00,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:08:00,839 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-18 05:08:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-18 05:08:00,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:08:00,841 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:08:00,841 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:08:00,841 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:08:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-18 05:08:00,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2234 transitions. [2020-07-18 05:08:00,935 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2234 transitions. Word has length 72 [2020-07-18 05:08:00,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:08:00,935 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2234 transitions. [2020-07-18 05:08:00,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:08:00,935 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2234 transitions. [2020-07-18 05:08:03,665 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2234 edges. 2234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:08:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2234 transitions. [2020-07-18 05:08:03,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-18 05:08:03,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:08:03,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:08:03,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-18 05:08:03,667 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:08:03,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:08:03,668 INFO L82 PathProgramCache]: Analyzing trace with hash 94899998, now seen corresponding path program 1 times [2020-07-18 05:08:03,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:08:03,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515390828] [2020-07-18 05:08:03,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:08:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:08:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:08:03,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-18 05:08:03,708 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-18 05:08:03,708 INFO L263 TraceCheckUtils]: 0: Hoare triple {48461#true} call ULTIMATE.init(); {48461#true} is VALID [2020-07-18 05:08:03,709 INFO L280 TraceCheckUtils]: 1: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-18 05:08:03,709 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-18 05:08:03,709 INFO L263 TraceCheckUtils]: 3: Hoare triple {48461#true} call #t~ret10 := main(); {48461#true} is VALID [2020-07-18 05:08:03,709 INFO L280 TraceCheckUtils]: 4: Hoare triple {48461#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,709 INFO L280 TraceCheckUtils]: 5: Hoare triple {48461#true} ~p1~0 := #t~nondet0; {48461#true} is VALID [2020-07-18 05:08:03,709 INFO L280 TraceCheckUtils]: 6: Hoare triple {48461#true} havoc #t~nondet0; {48461#true} is VALID [2020-07-18 05:08:03,710 INFO L280 TraceCheckUtils]: 7: Hoare triple {48461#true} havoc ~lk1~0; {48461#true} is VALID [2020-07-18 05:08:03,710 INFO L280 TraceCheckUtils]: 8: Hoare triple {48461#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,710 INFO L280 TraceCheckUtils]: 9: Hoare triple {48461#true} ~p2~0 := #t~nondet1; {48461#true} is VALID [2020-07-18 05:08:03,710 INFO L280 TraceCheckUtils]: 10: Hoare triple {48461#true} havoc #t~nondet1; {48461#true} is VALID [2020-07-18 05:08:03,710 INFO L280 TraceCheckUtils]: 11: Hoare triple {48461#true} havoc ~lk2~0; {48461#true} is VALID [2020-07-18 05:08:03,710 INFO L280 TraceCheckUtils]: 12: Hoare triple {48461#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,711 INFO L280 TraceCheckUtils]: 13: Hoare triple {48461#true} ~p3~0 := #t~nondet2; {48461#true} is VALID [2020-07-18 05:08:03,711 INFO L280 TraceCheckUtils]: 14: Hoare triple {48461#true} havoc #t~nondet2; {48461#true} is VALID [2020-07-18 05:08:03,711 INFO L280 TraceCheckUtils]: 15: Hoare triple {48461#true} havoc ~lk3~0; {48461#true} is VALID [2020-07-18 05:08:03,711 INFO L280 TraceCheckUtils]: 16: Hoare triple {48461#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,711 INFO L280 TraceCheckUtils]: 17: Hoare triple {48461#true} ~p4~0 := #t~nondet3; {48461#true} is VALID [2020-07-18 05:08:03,711 INFO L280 TraceCheckUtils]: 18: Hoare triple {48461#true} havoc #t~nondet3; {48461#true} is VALID [2020-07-18 05:08:03,712 INFO L280 TraceCheckUtils]: 19: Hoare triple {48461#true} havoc ~lk4~0; {48461#true} is VALID [2020-07-18 05:08:03,712 INFO L280 TraceCheckUtils]: 20: Hoare triple {48461#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,712 INFO L280 TraceCheckUtils]: 21: Hoare triple {48461#true} ~p5~0 := #t~nondet4; {48461#true} is VALID [2020-07-18 05:08:03,712 INFO L280 TraceCheckUtils]: 22: Hoare triple {48461#true} havoc #t~nondet4; {48461#true} is VALID [2020-07-18 05:08:03,712 INFO L280 TraceCheckUtils]: 23: Hoare triple {48461#true} havoc ~lk5~0; {48461#true} is VALID [2020-07-18 05:08:03,713 INFO L280 TraceCheckUtils]: 24: Hoare triple {48461#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,713 INFO L280 TraceCheckUtils]: 25: Hoare triple {48461#true} ~p6~0 := #t~nondet5; {48461#true} is VALID [2020-07-18 05:08:03,713 INFO L280 TraceCheckUtils]: 26: Hoare triple {48461#true} havoc #t~nondet5; {48461#true} is VALID [2020-07-18 05:08:03,713 INFO L280 TraceCheckUtils]: 27: Hoare triple {48461#true} havoc ~lk6~0; {48461#true} is VALID [2020-07-18 05:08:03,713 INFO L280 TraceCheckUtils]: 28: Hoare triple {48461#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,713 INFO L280 TraceCheckUtils]: 29: Hoare triple {48461#true} ~p7~0 := #t~nondet6; {48461#true} is VALID [2020-07-18 05:08:03,714 INFO L280 TraceCheckUtils]: 30: Hoare triple {48461#true} havoc #t~nondet6; {48461#true} is VALID [2020-07-18 05:08:03,714 INFO L280 TraceCheckUtils]: 31: Hoare triple {48461#true} havoc ~lk7~0; {48461#true} is VALID [2020-07-18 05:08:03,714 INFO L280 TraceCheckUtils]: 32: Hoare triple {48461#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,714 INFO L280 TraceCheckUtils]: 33: Hoare triple {48461#true} ~p8~0 := #t~nondet7; {48461#true} is VALID [2020-07-18 05:08:03,714 INFO L280 TraceCheckUtils]: 34: Hoare triple {48461#true} havoc #t~nondet7; {48461#true} is VALID [2020-07-18 05:08:03,714 INFO L280 TraceCheckUtils]: 35: Hoare triple {48461#true} havoc ~lk8~0; {48461#true} is VALID [2020-07-18 05:08:03,715 INFO L280 TraceCheckUtils]: 36: Hoare triple {48461#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,715 INFO L280 TraceCheckUtils]: 37: Hoare triple {48461#true} ~p9~0 := #t~nondet8; {48461#true} is VALID [2020-07-18 05:08:03,715 INFO L280 TraceCheckUtils]: 38: Hoare triple {48461#true} havoc #t~nondet8; {48461#true} is VALID [2020-07-18 05:08:03,715 INFO L280 TraceCheckUtils]: 39: Hoare triple {48461#true} havoc ~lk9~0; {48461#true} is VALID [2020-07-18 05:08:03,715 INFO L280 TraceCheckUtils]: 40: Hoare triple {48461#true} havoc ~cond~0; {48461#true} is VALID [2020-07-18 05:08:03,716 INFO L280 TraceCheckUtils]: 41: Hoare triple {48461#true} assume !false; {48461#true} is VALID [2020-07-18 05:08:03,716 INFO L280 TraceCheckUtils]: 42: Hoare triple {48461#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {48461#true} is VALID [2020-07-18 05:08:03,716 INFO L280 TraceCheckUtils]: 43: Hoare triple {48461#true} ~cond~0 := #t~nondet9; {48461#true} is VALID [2020-07-18 05:08:03,716 INFO L280 TraceCheckUtils]: 44: Hoare triple {48461#true} havoc #t~nondet9; {48461#true} is VALID [2020-07-18 05:08:03,716 INFO L280 TraceCheckUtils]: 45: Hoare triple {48461#true} assume !(0 == ~cond~0); {48461#true} is VALID [2020-07-18 05:08:03,716 INFO L280 TraceCheckUtils]: 46: Hoare triple {48461#true} ~lk1~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,717 INFO L280 TraceCheckUtils]: 47: Hoare triple {48461#true} ~lk2~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,717 INFO L280 TraceCheckUtils]: 48: Hoare triple {48461#true} ~lk3~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,717 INFO L280 TraceCheckUtils]: 49: Hoare triple {48461#true} ~lk4~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,717 INFO L280 TraceCheckUtils]: 50: Hoare triple {48461#true} ~lk5~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,717 INFO L280 TraceCheckUtils]: 51: Hoare triple {48461#true} ~lk6~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,717 INFO L280 TraceCheckUtils]: 52: Hoare triple {48461#true} ~lk7~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,717 INFO L280 TraceCheckUtils]: 53: Hoare triple {48461#true} ~lk8~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,718 INFO L280 TraceCheckUtils]: 54: Hoare triple {48461#true} ~lk9~0 := 0; {48461#true} is VALID [2020-07-18 05:08:03,718 INFO L280 TraceCheckUtils]: 55: Hoare triple {48461#true} assume !(0 != ~p1~0); {48461#true} is VALID [2020-07-18 05:08:03,718 INFO L280 TraceCheckUtils]: 56: Hoare triple {48461#true} assume !(0 != ~p2~0); {48461#true} is VALID [2020-07-18 05:08:03,718 INFO L280 TraceCheckUtils]: 57: Hoare triple {48461#true} assume !(0 != ~p3~0); {48461#true} is VALID [2020-07-18 05:08:03,718 INFO L280 TraceCheckUtils]: 58: Hoare triple {48461#true} assume !(0 != ~p4~0); {48461#true} is VALID [2020-07-18 05:08:03,718 INFO L280 TraceCheckUtils]: 59: Hoare triple {48461#true} assume !(0 != ~p5~0); {48461#true} is VALID [2020-07-18 05:08:03,719 INFO L280 TraceCheckUtils]: 60: Hoare triple {48461#true} assume !(0 != ~p6~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,719 INFO L280 TraceCheckUtils]: 61: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p7~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,719 INFO L280 TraceCheckUtils]: 62: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p8~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,720 INFO L280 TraceCheckUtils]: 63: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p9~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,720 INFO L280 TraceCheckUtils]: 64: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p1~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,720 INFO L280 TraceCheckUtils]: 65: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p2~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,721 INFO L280 TraceCheckUtils]: 66: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p3~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,723 INFO L280 TraceCheckUtils]: 67: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p4~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,728 INFO L280 TraceCheckUtils]: 68: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p5~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 05:08:03,729 INFO L280 TraceCheckUtils]: 69: Hoare triple {48465#(= 0 main_~p6~0)} assume 0 != ~p6~0; {48462#false} is VALID [2020-07-18 05:08:03,729 INFO L280 TraceCheckUtils]: 70: Hoare triple {48462#false} assume 1 != ~lk6~0; {48462#false} is VALID [2020-07-18 05:08:03,729 INFO L280 TraceCheckUtils]: 71: Hoare triple {48462#false} assume !false; {48462#false} is VALID [2020-07-18 05:08:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:08:03,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515390828] [2020-07-18 05:08:03,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:08:03,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:08:03,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667439500] [2020-07-18 05:08:03,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-18 05:08:03,734 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:08:03,734 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:08:03,795 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:08:03,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:08:03,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:08:03,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:08:03,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:08:03,796 INFO L87 Difference]: Start difference. First operand 1691 states and 2234 transitions. Second operand 3 states. [2020-07-18 05:08:12,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:08:12,788 INFO L93 Difference]: Finished difference Result 4895 states and 6492 transitions. [2020-07-18 05:08:12,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:08:12,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-18 05:08:12,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:08:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:08:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-18 05:08:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:08:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-18 05:08:12,794 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 283 transitions. [2020-07-18 05:08:13,045 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 283 edges. 283 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:08:13,428 INFO L225 Difference]: With dead ends: 4895 [2020-07-18 05:08:13,428 INFO L226 Difference]: Without dead ends: 3245 [2020-07-18 05:08:13,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:08:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2020-07-18 05:08:21,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3243. [2020-07-18 05:08:21,102 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:08:21,102 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3245 states. Second operand 3243 states. [2020-07-18 05:08:21,103 INFO L74 IsIncluded]: Start isIncluded. First operand 3245 states. Second operand 3243 states. [2020-07-18 05:08:21,103 INFO L87 Difference]: Start difference. First operand 3245 states. Second operand 3243 states. [2020-07-18 05:08:21,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:08:21,421 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-18 05:08:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-18 05:08:21,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:08:21,424 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:08:21,424 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3245 states. [2020-07-18 05:08:21,424 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3245 states. [2020-07-18 05:08:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:08:21,754 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-18 05:08:21,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-18 05:08:21,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:08:21,758 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:08:21,758 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:08:21,758 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:08:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-18 05:08:22,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4234 transitions. [2020-07-18 05:08:22,087 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4234 transitions. Word has length 72 [2020-07-18 05:08:22,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:08:22,087 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4234 transitions. [2020-07-18 05:08:22,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:08:22,088 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4234 transitions. [2020-07-18 05:08:27,374 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4234 edges. 4234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:08:27,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4234 transitions. [2020-07-18 05:08:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-18 05:08:27,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:08:27,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:08:27,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-18 05:08:27,377 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:08:27,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:08:27,377 INFO L82 PathProgramCache]: Analyzing trace with hash 2090581278, now seen corresponding path program 1 times [2020-07-18 05:08:27,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:08:27,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421370360] [2020-07-18 05:08:27,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:08:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:08:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:08:27,413 INFO L280 TraceCheckUtils]: 0: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-18 05:08:27,413 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-18 05:08:27,414 INFO L263 TraceCheckUtils]: 0: Hoare triple {71234#true} call ULTIMATE.init(); {71234#true} is VALID [2020-07-18 05:08:27,414 INFO L280 TraceCheckUtils]: 1: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-18 05:08:27,414 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-18 05:08:27,414 INFO L263 TraceCheckUtils]: 3: Hoare triple {71234#true} call #t~ret10 := main(); {71234#true} is VALID [2020-07-18 05:08:27,414 INFO L280 TraceCheckUtils]: 4: Hoare triple {71234#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,415 INFO L280 TraceCheckUtils]: 5: Hoare triple {71234#true} ~p1~0 := #t~nondet0; {71234#true} is VALID [2020-07-18 05:08:27,415 INFO L280 TraceCheckUtils]: 6: Hoare triple {71234#true} havoc #t~nondet0; {71234#true} is VALID [2020-07-18 05:08:27,415 INFO L280 TraceCheckUtils]: 7: Hoare triple {71234#true} havoc ~lk1~0; {71234#true} is VALID [2020-07-18 05:08:27,415 INFO L280 TraceCheckUtils]: 8: Hoare triple {71234#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,415 INFO L280 TraceCheckUtils]: 9: Hoare triple {71234#true} ~p2~0 := #t~nondet1; {71234#true} is VALID [2020-07-18 05:08:27,416 INFO L280 TraceCheckUtils]: 10: Hoare triple {71234#true} havoc #t~nondet1; {71234#true} is VALID [2020-07-18 05:08:27,416 INFO L280 TraceCheckUtils]: 11: Hoare triple {71234#true} havoc ~lk2~0; {71234#true} is VALID [2020-07-18 05:08:27,416 INFO L280 TraceCheckUtils]: 12: Hoare triple {71234#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,416 INFO L280 TraceCheckUtils]: 13: Hoare triple {71234#true} ~p3~0 := #t~nondet2; {71234#true} is VALID [2020-07-18 05:08:27,416 INFO L280 TraceCheckUtils]: 14: Hoare triple {71234#true} havoc #t~nondet2; {71234#true} is VALID [2020-07-18 05:08:27,417 INFO L280 TraceCheckUtils]: 15: Hoare triple {71234#true} havoc ~lk3~0; {71234#true} is VALID [2020-07-18 05:08:27,417 INFO L280 TraceCheckUtils]: 16: Hoare triple {71234#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,417 INFO L280 TraceCheckUtils]: 17: Hoare triple {71234#true} ~p4~0 := #t~nondet3; {71234#true} is VALID [2020-07-18 05:08:27,417 INFO L280 TraceCheckUtils]: 18: Hoare triple {71234#true} havoc #t~nondet3; {71234#true} is VALID [2020-07-18 05:08:27,417 INFO L280 TraceCheckUtils]: 19: Hoare triple {71234#true} havoc ~lk4~0; {71234#true} is VALID [2020-07-18 05:08:27,417 INFO L280 TraceCheckUtils]: 20: Hoare triple {71234#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,418 INFO L280 TraceCheckUtils]: 21: Hoare triple {71234#true} ~p5~0 := #t~nondet4; {71234#true} is VALID [2020-07-18 05:08:27,418 INFO L280 TraceCheckUtils]: 22: Hoare triple {71234#true} havoc #t~nondet4; {71234#true} is VALID [2020-07-18 05:08:27,418 INFO L280 TraceCheckUtils]: 23: Hoare triple {71234#true} havoc ~lk5~0; {71234#true} is VALID [2020-07-18 05:08:27,418 INFO L280 TraceCheckUtils]: 24: Hoare triple {71234#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,418 INFO L280 TraceCheckUtils]: 25: Hoare triple {71234#true} ~p6~0 := #t~nondet5; {71234#true} is VALID [2020-07-18 05:08:27,419 INFO L280 TraceCheckUtils]: 26: Hoare triple {71234#true} havoc #t~nondet5; {71234#true} is VALID [2020-07-18 05:08:27,419 INFO L280 TraceCheckUtils]: 27: Hoare triple {71234#true} havoc ~lk6~0; {71234#true} is VALID [2020-07-18 05:08:27,419 INFO L280 TraceCheckUtils]: 28: Hoare triple {71234#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,419 INFO L280 TraceCheckUtils]: 29: Hoare triple {71234#true} ~p7~0 := #t~nondet6; {71234#true} is VALID [2020-07-18 05:08:27,419 INFO L280 TraceCheckUtils]: 30: Hoare triple {71234#true} havoc #t~nondet6; {71234#true} is VALID [2020-07-18 05:08:27,420 INFO L280 TraceCheckUtils]: 31: Hoare triple {71234#true} havoc ~lk7~0; {71234#true} is VALID [2020-07-18 05:08:27,420 INFO L280 TraceCheckUtils]: 32: Hoare triple {71234#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,420 INFO L280 TraceCheckUtils]: 33: Hoare triple {71234#true} ~p8~0 := #t~nondet7; {71234#true} is VALID [2020-07-18 05:08:27,420 INFO L280 TraceCheckUtils]: 34: Hoare triple {71234#true} havoc #t~nondet7; {71234#true} is VALID [2020-07-18 05:08:27,420 INFO L280 TraceCheckUtils]: 35: Hoare triple {71234#true} havoc ~lk8~0; {71234#true} is VALID [2020-07-18 05:08:27,420 INFO L280 TraceCheckUtils]: 36: Hoare triple {71234#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,421 INFO L280 TraceCheckUtils]: 37: Hoare triple {71234#true} ~p9~0 := #t~nondet8; {71234#true} is VALID [2020-07-18 05:08:27,421 INFO L280 TraceCheckUtils]: 38: Hoare triple {71234#true} havoc #t~nondet8; {71234#true} is VALID [2020-07-18 05:08:27,421 INFO L280 TraceCheckUtils]: 39: Hoare triple {71234#true} havoc ~lk9~0; {71234#true} is VALID [2020-07-18 05:08:27,421 INFO L280 TraceCheckUtils]: 40: Hoare triple {71234#true} havoc ~cond~0; {71234#true} is VALID [2020-07-18 05:08:27,421 INFO L280 TraceCheckUtils]: 41: Hoare triple {71234#true} assume !false; {71234#true} is VALID [2020-07-18 05:08:27,421 INFO L280 TraceCheckUtils]: 42: Hoare triple {71234#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {71234#true} is VALID [2020-07-18 05:08:27,422 INFO L280 TraceCheckUtils]: 43: Hoare triple {71234#true} ~cond~0 := #t~nondet9; {71234#true} is VALID [2020-07-18 05:08:27,422 INFO L280 TraceCheckUtils]: 44: Hoare triple {71234#true} havoc #t~nondet9; {71234#true} is VALID [2020-07-18 05:08:27,422 INFO L280 TraceCheckUtils]: 45: Hoare triple {71234#true} assume !(0 == ~cond~0); {71234#true} is VALID [2020-07-18 05:08:27,422 INFO L280 TraceCheckUtils]: 46: Hoare triple {71234#true} ~lk1~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,422 INFO L280 TraceCheckUtils]: 47: Hoare triple {71234#true} ~lk2~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,422 INFO L280 TraceCheckUtils]: 48: Hoare triple {71234#true} ~lk3~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,423 INFO L280 TraceCheckUtils]: 49: Hoare triple {71234#true} ~lk4~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,423 INFO L280 TraceCheckUtils]: 50: Hoare triple {71234#true} ~lk5~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,423 INFO L280 TraceCheckUtils]: 51: Hoare triple {71234#true} ~lk6~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,423 INFO L280 TraceCheckUtils]: 52: Hoare triple {71234#true} ~lk7~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,423 INFO L280 TraceCheckUtils]: 53: Hoare triple {71234#true} ~lk8~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,424 INFO L280 TraceCheckUtils]: 54: Hoare triple {71234#true} ~lk9~0 := 0; {71234#true} is VALID [2020-07-18 05:08:27,424 INFO L280 TraceCheckUtils]: 55: Hoare triple {71234#true} assume !(0 != ~p1~0); {71234#true} is VALID [2020-07-18 05:08:27,424 INFO L280 TraceCheckUtils]: 56: Hoare triple {71234#true} assume !(0 != ~p2~0); {71234#true} is VALID [2020-07-18 05:08:27,424 INFO L280 TraceCheckUtils]: 57: Hoare triple {71234#true} assume !(0 != ~p3~0); {71234#true} is VALID [2020-07-18 05:08:27,424 INFO L280 TraceCheckUtils]: 58: Hoare triple {71234#true} assume !(0 != ~p4~0); {71234#true} is VALID [2020-07-18 05:08:27,424 INFO L280 TraceCheckUtils]: 59: Hoare triple {71234#true} assume !(0 != ~p5~0); {71234#true} is VALID [2020-07-18 05:08:27,425 INFO L280 TraceCheckUtils]: 60: Hoare triple {71234#true} assume 0 != ~p6~0; {71234#true} is VALID [2020-07-18 05:08:27,431 INFO L280 TraceCheckUtils]: 61: Hoare triple {71234#true} ~lk6~0 := 1; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,431 INFO L280 TraceCheckUtils]: 62: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p7~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,432 INFO L280 TraceCheckUtils]: 63: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p8~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,432 INFO L280 TraceCheckUtils]: 64: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p9~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,433 INFO L280 TraceCheckUtils]: 65: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p1~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,433 INFO L280 TraceCheckUtils]: 66: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p2~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,434 INFO L280 TraceCheckUtils]: 67: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p3~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,434 INFO L280 TraceCheckUtils]: 68: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p4~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,435 INFO L280 TraceCheckUtils]: 69: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p5~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,435 INFO L280 TraceCheckUtils]: 70: Hoare triple {71238#(= 1 main_~lk6~0)} assume 0 != ~p6~0; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 05:08:27,436 INFO L280 TraceCheckUtils]: 71: Hoare triple {71238#(= 1 main_~lk6~0)} assume 1 != ~lk6~0; {71235#false} is VALID [2020-07-18 05:08:27,436 INFO L280 TraceCheckUtils]: 72: Hoare triple {71235#false} assume !false; {71235#false} is VALID [2020-07-18 05:08:27,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:08:27,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421370360] [2020-07-18 05:08:27,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:08:27,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:08:27,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450717135] [2020-07-18 05:08:27,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-18 05:08:27,440 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:08:27,441 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:08:27,497 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:08:27,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:08:27,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:08:27,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:08:27,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:08:27,498 INFO L87 Difference]: Start difference. First operand 3243 states and 4234 transitions. Second operand 3 states. [2020-07-18 05:08:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:08:38,448 INFO L93 Difference]: Finished difference Result 3887 states and 5068 transitions. [2020-07-18 05:08:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:08:38,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-18 05:08:38,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:08:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:08:38,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-18 05:08:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:08:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-18 05:08:38,450 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 181 transitions. [2020-07-18 05:08:38,610 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:08:39,189 INFO L225 Difference]: With dead ends: 3887 [2020-07-18 05:08:39,189 INFO L226 Difference]: Without dead ends: 3885 [2020-07-18 05:08:39,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:08:39,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2020-07-18 05:08:47,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3243. [2020-07-18 05:08:47,406 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:08:47,406 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3885 states. Second operand 3243 states. [2020-07-18 05:08:47,406 INFO L74 IsIncluded]: Start isIncluded. First operand 3885 states. Second operand 3243 states. [2020-07-18 05:08:47,406 INFO L87 Difference]: Start difference. First operand 3885 states. Second operand 3243 states. [2020-07-18 05:08:47,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:08:47,846 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-18 05:08:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-18 05:08:47,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:08:47,850 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:08:47,850 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3885 states. [2020-07-18 05:08:47,850 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3885 states. [2020-07-18 05:08:48,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:08:48,297 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-18 05:08:48,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-18 05:08:48,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:08:48,301 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:08:48,301 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:08:48,301 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:08:48,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-18 05:08:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4202 transitions. [2020-07-18 05:08:48,665 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4202 transitions. Word has length 73 [2020-07-18 05:08:48,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:08:48,665 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4202 transitions. [2020-07-18 05:08:48,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:08:48,665 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4202 transitions. [2020-07-18 05:08:54,115 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4202 edges. 4202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:08:54,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4202 transitions. [2020-07-18 05:08:54,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-18 05:08:54,118 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:08:54,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:08:54,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-18 05:08:54,118 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:08:54,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:08:54,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1352821224, now seen corresponding path program 1 times [2020-07-18 05:08:54,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:08:54,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958439555] [2020-07-18 05:08:54,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:08:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:08:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:08:54,161 INFO L280 TraceCheckUtils]: 0: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-18 05:08:54,161 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-18 05:08:54,161 INFO L263 TraceCheckUtils]: 0: Hoare triple {93271#true} call ULTIMATE.init(); {93271#true} is VALID [2020-07-18 05:08:54,161 INFO L280 TraceCheckUtils]: 1: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-18 05:08:54,161 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-18 05:08:54,162 INFO L263 TraceCheckUtils]: 3: Hoare triple {93271#true} call #t~ret10 := main(); {93271#true} is VALID [2020-07-18 05:08:54,162 INFO L280 TraceCheckUtils]: 4: Hoare triple {93271#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,162 INFO L280 TraceCheckUtils]: 5: Hoare triple {93271#true} ~p1~0 := #t~nondet0; {93271#true} is VALID [2020-07-18 05:08:54,162 INFO L280 TraceCheckUtils]: 6: Hoare triple {93271#true} havoc #t~nondet0; {93271#true} is VALID [2020-07-18 05:08:54,162 INFO L280 TraceCheckUtils]: 7: Hoare triple {93271#true} havoc ~lk1~0; {93271#true} is VALID [2020-07-18 05:08:54,162 INFO L280 TraceCheckUtils]: 8: Hoare triple {93271#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,163 INFO L280 TraceCheckUtils]: 9: Hoare triple {93271#true} ~p2~0 := #t~nondet1; {93271#true} is VALID [2020-07-18 05:08:54,163 INFO L280 TraceCheckUtils]: 10: Hoare triple {93271#true} havoc #t~nondet1; {93271#true} is VALID [2020-07-18 05:08:54,163 INFO L280 TraceCheckUtils]: 11: Hoare triple {93271#true} havoc ~lk2~0; {93271#true} is VALID [2020-07-18 05:08:54,163 INFO L280 TraceCheckUtils]: 12: Hoare triple {93271#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,163 INFO L280 TraceCheckUtils]: 13: Hoare triple {93271#true} ~p3~0 := #t~nondet2; {93271#true} is VALID [2020-07-18 05:08:54,163 INFO L280 TraceCheckUtils]: 14: Hoare triple {93271#true} havoc #t~nondet2; {93271#true} is VALID [2020-07-18 05:08:54,164 INFO L280 TraceCheckUtils]: 15: Hoare triple {93271#true} havoc ~lk3~0; {93271#true} is VALID [2020-07-18 05:08:54,164 INFO L280 TraceCheckUtils]: 16: Hoare triple {93271#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,164 INFO L280 TraceCheckUtils]: 17: Hoare triple {93271#true} ~p4~0 := #t~nondet3; {93271#true} is VALID [2020-07-18 05:08:54,164 INFO L280 TraceCheckUtils]: 18: Hoare triple {93271#true} havoc #t~nondet3; {93271#true} is VALID [2020-07-18 05:08:54,164 INFO L280 TraceCheckUtils]: 19: Hoare triple {93271#true} havoc ~lk4~0; {93271#true} is VALID [2020-07-18 05:08:54,164 INFO L280 TraceCheckUtils]: 20: Hoare triple {93271#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,165 INFO L280 TraceCheckUtils]: 21: Hoare triple {93271#true} ~p5~0 := #t~nondet4; {93271#true} is VALID [2020-07-18 05:08:54,165 INFO L280 TraceCheckUtils]: 22: Hoare triple {93271#true} havoc #t~nondet4; {93271#true} is VALID [2020-07-18 05:08:54,165 INFO L280 TraceCheckUtils]: 23: Hoare triple {93271#true} havoc ~lk5~0; {93271#true} is VALID [2020-07-18 05:08:54,165 INFO L280 TraceCheckUtils]: 24: Hoare triple {93271#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,165 INFO L280 TraceCheckUtils]: 25: Hoare triple {93271#true} ~p6~0 := #t~nondet5; {93271#true} is VALID [2020-07-18 05:08:54,165 INFO L280 TraceCheckUtils]: 26: Hoare triple {93271#true} havoc #t~nondet5; {93271#true} is VALID [2020-07-18 05:08:54,166 INFO L280 TraceCheckUtils]: 27: Hoare triple {93271#true} havoc ~lk6~0; {93271#true} is VALID [2020-07-18 05:08:54,166 INFO L280 TraceCheckUtils]: 28: Hoare triple {93271#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,166 INFO L280 TraceCheckUtils]: 29: Hoare triple {93271#true} ~p7~0 := #t~nondet6; {93271#true} is VALID [2020-07-18 05:08:54,166 INFO L280 TraceCheckUtils]: 30: Hoare triple {93271#true} havoc #t~nondet6; {93271#true} is VALID [2020-07-18 05:08:54,166 INFO L280 TraceCheckUtils]: 31: Hoare triple {93271#true} havoc ~lk7~0; {93271#true} is VALID [2020-07-18 05:08:54,166 INFO L280 TraceCheckUtils]: 32: Hoare triple {93271#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,167 INFO L280 TraceCheckUtils]: 33: Hoare triple {93271#true} ~p8~0 := #t~nondet7; {93271#true} is VALID [2020-07-18 05:08:54,167 INFO L280 TraceCheckUtils]: 34: Hoare triple {93271#true} havoc #t~nondet7; {93271#true} is VALID [2020-07-18 05:08:54,167 INFO L280 TraceCheckUtils]: 35: Hoare triple {93271#true} havoc ~lk8~0; {93271#true} is VALID [2020-07-18 05:08:54,167 INFO L280 TraceCheckUtils]: 36: Hoare triple {93271#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,167 INFO L280 TraceCheckUtils]: 37: Hoare triple {93271#true} ~p9~0 := #t~nondet8; {93271#true} is VALID [2020-07-18 05:08:54,167 INFO L280 TraceCheckUtils]: 38: Hoare triple {93271#true} havoc #t~nondet8; {93271#true} is VALID [2020-07-18 05:08:54,168 INFO L280 TraceCheckUtils]: 39: Hoare triple {93271#true} havoc ~lk9~0; {93271#true} is VALID [2020-07-18 05:08:54,168 INFO L280 TraceCheckUtils]: 40: Hoare triple {93271#true} havoc ~cond~0; {93271#true} is VALID [2020-07-18 05:08:54,168 INFO L280 TraceCheckUtils]: 41: Hoare triple {93271#true} assume !false; {93271#true} is VALID [2020-07-18 05:08:54,168 INFO L280 TraceCheckUtils]: 42: Hoare triple {93271#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {93271#true} is VALID [2020-07-18 05:08:54,168 INFO L280 TraceCheckUtils]: 43: Hoare triple {93271#true} ~cond~0 := #t~nondet9; {93271#true} is VALID [2020-07-18 05:08:54,168 INFO L280 TraceCheckUtils]: 44: Hoare triple {93271#true} havoc #t~nondet9; {93271#true} is VALID [2020-07-18 05:08:54,169 INFO L280 TraceCheckUtils]: 45: Hoare triple {93271#true} assume !(0 == ~cond~0); {93271#true} is VALID [2020-07-18 05:08:54,169 INFO L280 TraceCheckUtils]: 46: Hoare triple {93271#true} ~lk1~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,169 INFO L280 TraceCheckUtils]: 47: Hoare triple {93271#true} ~lk2~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,169 INFO L280 TraceCheckUtils]: 48: Hoare triple {93271#true} ~lk3~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,169 INFO L280 TraceCheckUtils]: 49: Hoare triple {93271#true} ~lk4~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,169 INFO L280 TraceCheckUtils]: 50: Hoare triple {93271#true} ~lk5~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,170 INFO L280 TraceCheckUtils]: 51: Hoare triple {93271#true} ~lk6~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,170 INFO L280 TraceCheckUtils]: 52: Hoare triple {93271#true} ~lk7~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,170 INFO L280 TraceCheckUtils]: 53: Hoare triple {93271#true} ~lk8~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,170 INFO L280 TraceCheckUtils]: 54: Hoare triple {93271#true} ~lk9~0 := 0; {93271#true} is VALID [2020-07-18 05:08:54,170 INFO L280 TraceCheckUtils]: 55: Hoare triple {93271#true} assume !(0 != ~p1~0); {93271#true} is VALID [2020-07-18 05:08:54,170 INFO L280 TraceCheckUtils]: 56: Hoare triple {93271#true} assume !(0 != ~p2~0); {93271#true} is VALID [2020-07-18 05:08:54,171 INFO L280 TraceCheckUtils]: 57: Hoare triple {93271#true} assume !(0 != ~p3~0); {93271#true} is VALID [2020-07-18 05:08:54,171 INFO L280 TraceCheckUtils]: 58: Hoare triple {93271#true} assume !(0 != ~p4~0); {93271#true} is VALID [2020-07-18 05:08:54,171 INFO L280 TraceCheckUtils]: 59: Hoare triple {93271#true} assume !(0 != ~p5~0); {93271#true} is VALID [2020-07-18 05:08:54,171 INFO L280 TraceCheckUtils]: 60: Hoare triple {93271#true} assume !(0 != ~p6~0); {93271#true} is VALID [2020-07-18 05:08:54,172 INFO L280 TraceCheckUtils]: 61: Hoare triple {93271#true} assume !(0 != ~p7~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,172 INFO L280 TraceCheckUtils]: 62: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p8~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,173 INFO L280 TraceCheckUtils]: 63: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p9~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,173 INFO L280 TraceCheckUtils]: 64: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p1~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,174 INFO L280 TraceCheckUtils]: 65: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p2~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,174 INFO L280 TraceCheckUtils]: 66: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p3~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,175 INFO L280 TraceCheckUtils]: 67: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p4~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,175 INFO L280 TraceCheckUtils]: 68: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p5~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,176 INFO L280 TraceCheckUtils]: 69: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p6~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 05:08:54,176 INFO L280 TraceCheckUtils]: 70: Hoare triple {93275#(= 0 main_~p7~0)} assume 0 != ~p7~0; {93272#false} is VALID [2020-07-18 05:08:54,176 INFO L280 TraceCheckUtils]: 71: Hoare triple {93272#false} assume 1 != ~lk7~0; {93272#false} is VALID [2020-07-18 05:08:54,176 INFO L280 TraceCheckUtils]: 72: Hoare triple {93272#false} assume !false; {93272#false} is VALID [2020-07-18 05:08:54,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:08:54,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958439555] [2020-07-18 05:08:54,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:08:54,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:08:54,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860755124] [2020-07-18 05:08:54,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-18 05:08:54,181 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:08:54,181 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:08:54,233 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:08:54,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:08:54,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:08:54,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:08:54,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:08:54,235 INFO L87 Difference]: Start difference. First operand 3243 states and 4202 transitions. Second operand 3 states. [2020-07-18 05:09:15,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:09:15,526 INFO L93 Difference]: Finished difference Result 9455 states and 12268 transitions. [2020-07-18 05:09:15,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:09:15,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-18 05:09:15,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:09:15,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:09:15,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-18 05:09:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:09:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-18 05:09:15,529 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-18 05:09:15,776 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:09:17,154 INFO L225 Difference]: With dead ends: 9455 [2020-07-18 05:09:17,154 INFO L226 Difference]: Without dead ends: 6253 [2020-07-18 05:09:17,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:09:17,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2020-07-18 05:09:34,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 6251. [2020-07-18 05:09:34,602 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:09:34,602 INFO L82 GeneralOperation]: Start isEquivalent. First operand 6253 states. Second operand 6251 states. [2020-07-18 05:09:34,602 INFO L74 IsIncluded]: Start isIncluded. First operand 6253 states. Second operand 6251 states. [2020-07-18 05:09:34,602 INFO L87 Difference]: Start difference. First operand 6253 states. Second operand 6251 states. [2020-07-18 05:09:35,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:09:35,814 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-18 05:09:35,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-18 05:09:35,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:09:35,820 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:09:35,821 INFO L74 IsIncluded]: Start isIncluded. First operand 6251 states. Second operand 6253 states. [2020-07-18 05:09:35,821 INFO L87 Difference]: Start difference. First operand 6251 states. Second operand 6253 states. [2020-07-18 05:09:37,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:09:37,064 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-18 05:09:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-18 05:09:37,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:09:37,070 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:09:37,070 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:09:37,070 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:09:37,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6251 states. [2020-07-18 05:09:38,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 7978 transitions. [2020-07-18 05:09:38,365 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 7978 transitions. Word has length 73 [2020-07-18 05:09:38,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:09:38,366 INFO L479 AbstractCegarLoop]: Abstraction has 6251 states and 7978 transitions. [2020-07-18 05:09:38,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:09:38,366 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6251 states and 7978 transitions. [2020-07-18 05:09:48,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7978 edges. 7978 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:09:48,641 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 7978 transitions. [2020-07-18 05:09:48,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-18 05:09:48,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:09:48,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:09:48,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-18 05:09:48,645 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:09:48,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:09:48,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1012461522, now seen corresponding path program 1 times [2020-07-18 05:09:48,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:09:48,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155677747] [2020-07-18 05:09:48,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:09:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:09:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:09:48,675 INFO L280 TraceCheckUtils]: 0: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-18 05:09:48,675 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-18 05:09:48,676 INFO L263 TraceCheckUtils]: 0: Hoare triple {137196#true} call ULTIMATE.init(); {137196#true} is VALID [2020-07-18 05:09:48,676 INFO L280 TraceCheckUtils]: 1: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-18 05:09:48,676 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-18 05:09:48,676 INFO L263 TraceCheckUtils]: 3: Hoare triple {137196#true} call #t~ret10 := main(); {137196#true} is VALID [2020-07-18 05:09:48,676 INFO L280 TraceCheckUtils]: 4: Hoare triple {137196#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,677 INFO L280 TraceCheckUtils]: 5: Hoare triple {137196#true} ~p1~0 := #t~nondet0; {137196#true} is VALID [2020-07-18 05:09:48,677 INFO L280 TraceCheckUtils]: 6: Hoare triple {137196#true} havoc #t~nondet0; {137196#true} is VALID [2020-07-18 05:09:48,677 INFO L280 TraceCheckUtils]: 7: Hoare triple {137196#true} havoc ~lk1~0; {137196#true} is VALID [2020-07-18 05:09:48,677 INFO L280 TraceCheckUtils]: 8: Hoare triple {137196#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,678 INFO L280 TraceCheckUtils]: 9: Hoare triple {137196#true} ~p2~0 := #t~nondet1; {137196#true} is VALID [2020-07-18 05:09:48,678 INFO L280 TraceCheckUtils]: 10: Hoare triple {137196#true} havoc #t~nondet1; {137196#true} is VALID [2020-07-18 05:09:48,679 INFO L280 TraceCheckUtils]: 11: Hoare triple {137196#true} havoc ~lk2~0; {137196#true} is VALID [2020-07-18 05:09:48,679 INFO L280 TraceCheckUtils]: 12: Hoare triple {137196#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,679 INFO L280 TraceCheckUtils]: 13: Hoare triple {137196#true} ~p3~0 := #t~nondet2; {137196#true} is VALID [2020-07-18 05:09:48,679 INFO L280 TraceCheckUtils]: 14: Hoare triple {137196#true} havoc #t~nondet2; {137196#true} is VALID [2020-07-18 05:09:48,679 INFO L280 TraceCheckUtils]: 15: Hoare triple {137196#true} havoc ~lk3~0; {137196#true} is VALID [2020-07-18 05:09:48,680 INFO L280 TraceCheckUtils]: 16: Hoare triple {137196#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,680 INFO L280 TraceCheckUtils]: 17: Hoare triple {137196#true} ~p4~0 := #t~nondet3; {137196#true} is VALID [2020-07-18 05:09:48,680 INFO L280 TraceCheckUtils]: 18: Hoare triple {137196#true} havoc #t~nondet3; {137196#true} is VALID [2020-07-18 05:09:48,680 INFO L280 TraceCheckUtils]: 19: Hoare triple {137196#true} havoc ~lk4~0; {137196#true} is VALID [2020-07-18 05:09:48,680 INFO L280 TraceCheckUtils]: 20: Hoare triple {137196#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,680 INFO L280 TraceCheckUtils]: 21: Hoare triple {137196#true} ~p5~0 := #t~nondet4; {137196#true} is VALID [2020-07-18 05:09:48,681 INFO L280 TraceCheckUtils]: 22: Hoare triple {137196#true} havoc #t~nondet4; {137196#true} is VALID [2020-07-18 05:09:48,681 INFO L280 TraceCheckUtils]: 23: Hoare triple {137196#true} havoc ~lk5~0; {137196#true} is VALID [2020-07-18 05:09:48,681 INFO L280 TraceCheckUtils]: 24: Hoare triple {137196#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,681 INFO L280 TraceCheckUtils]: 25: Hoare triple {137196#true} ~p6~0 := #t~nondet5; {137196#true} is VALID [2020-07-18 05:09:48,681 INFO L280 TraceCheckUtils]: 26: Hoare triple {137196#true} havoc #t~nondet5; {137196#true} is VALID [2020-07-18 05:09:48,682 INFO L280 TraceCheckUtils]: 27: Hoare triple {137196#true} havoc ~lk6~0; {137196#true} is VALID [2020-07-18 05:09:48,682 INFO L280 TraceCheckUtils]: 28: Hoare triple {137196#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,682 INFO L280 TraceCheckUtils]: 29: Hoare triple {137196#true} ~p7~0 := #t~nondet6; {137196#true} is VALID [2020-07-18 05:09:48,682 INFO L280 TraceCheckUtils]: 30: Hoare triple {137196#true} havoc #t~nondet6; {137196#true} is VALID [2020-07-18 05:09:48,682 INFO L280 TraceCheckUtils]: 31: Hoare triple {137196#true} havoc ~lk7~0; {137196#true} is VALID [2020-07-18 05:09:48,682 INFO L280 TraceCheckUtils]: 32: Hoare triple {137196#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,683 INFO L280 TraceCheckUtils]: 33: Hoare triple {137196#true} ~p8~0 := #t~nondet7; {137196#true} is VALID [2020-07-18 05:09:48,683 INFO L280 TraceCheckUtils]: 34: Hoare triple {137196#true} havoc #t~nondet7; {137196#true} is VALID [2020-07-18 05:09:48,683 INFO L280 TraceCheckUtils]: 35: Hoare triple {137196#true} havoc ~lk8~0; {137196#true} is VALID [2020-07-18 05:09:48,683 INFO L280 TraceCheckUtils]: 36: Hoare triple {137196#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,683 INFO L280 TraceCheckUtils]: 37: Hoare triple {137196#true} ~p9~0 := #t~nondet8; {137196#true} is VALID [2020-07-18 05:09:48,684 INFO L280 TraceCheckUtils]: 38: Hoare triple {137196#true} havoc #t~nondet8; {137196#true} is VALID [2020-07-18 05:09:48,684 INFO L280 TraceCheckUtils]: 39: Hoare triple {137196#true} havoc ~lk9~0; {137196#true} is VALID [2020-07-18 05:09:48,685 INFO L280 TraceCheckUtils]: 40: Hoare triple {137196#true} havoc ~cond~0; {137196#true} is VALID [2020-07-18 05:09:48,685 INFO L280 TraceCheckUtils]: 41: Hoare triple {137196#true} assume !false; {137196#true} is VALID [2020-07-18 05:09:48,685 INFO L280 TraceCheckUtils]: 42: Hoare triple {137196#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {137196#true} is VALID [2020-07-18 05:09:48,685 INFO L280 TraceCheckUtils]: 43: Hoare triple {137196#true} ~cond~0 := #t~nondet9; {137196#true} is VALID [2020-07-18 05:09:48,686 INFO L280 TraceCheckUtils]: 44: Hoare triple {137196#true} havoc #t~nondet9; {137196#true} is VALID [2020-07-18 05:09:48,686 INFO L280 TraceCheckUtils]: 45: Hoare triple {137196#true} assume !(0 == ~cond~0); {137196#true} is VALID [2020-07-18 05:09:48,686 INFO L280 TraceCheckUtils]: 46: Hoare triple {137196#true} ~lk1~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,686 INFO L280 TraceCheckUtils]: 47: Hoare triple {137196#true} ~lk2~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,686 INFO L280 TraceCheckUtils]: 48: Hoare triple {137196#true} ~lk3~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,686 INFO L280 TraceCheckUtils]: 49: Hoare triple {137196#true} ~lk4~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,687 INFO L280 TraceCheckUtils]: 50: Hoare triple {137196#true} ~lk5~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,687 INFO L280 TraceCheckUtils]: 51: Hoare triple {137196#true} ~lk6~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,687 INFO L280 TraceCheckUtils]: 52: Hoare triple {137196#true} ~lk7~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,687 INFO L280 TraceCheckUtils]: 53: Hoare triple {137196#true} ~lk8~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,687 INFO L280 TraceCheckUtils]: 54: Hoare triple {137196#true} ~lk9~0 := 0; {137196#true} is VALID [2020-07-18 05:09:48,687 INFO L280 TraceCheckUtils]: 55: Hoare triple {137196#true} assume !(0 != ~p1~0); {137196#true} is VALID [2020-07-18 05:09:48,688 INFO L280 TraceCheckUtils]: 56: Hoare triple {137196#true} assume !(0 != ~p2~0); {137196#true} is VALID [2020-07-18 05:09:48,688 INFO L280 TraceCheckUtils]: 57: Hoare triple {137196#true} assume !(0 != ~p3~0); {137196#true} is VALID [2020-07-18 05:09:48,688 INFO L280 TraceCheckUtils]: 58: Hoare triple {137196#true} assume !(0 != ~p4~0); {137196#true} is VALID [2020-07-18 05:09:48,688 INFO L280 TraceCheckUtils]: 59: Hoare triple {137196#true} assume !(0 != ~p5~0); {137196#true} is VALID [2020-07-18 05:09:48,688 INFO L280 TraceCheckUtils]: 60: Hoare triple {137196#true} assume !(0 != ~p6~0); {137196#true} is VALID [2020-07-18 05:09:48,688 INFO L280 TraceCheckUtils]: 61: Hoare triple {137196#true} assume !(0 != ~p7~0); {137196#true} is VALID [2020-07-18 05:09:48,689 INFO L280 TraceCheckUtils]: 62: Hoare triple {137196#true} assume !(0 != ~p8~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,690 INFO L280 TraceCheckUtils]: 63: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p9~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,690 INFO L280 TraceCheckUtils]: 64: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p1~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,691 INFO L280 TraceCheckUtils]: 65: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p2~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,691 INFO L280 TraceCheckUtils]: 66: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p3~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,691 INFO L280 TraceCheckUtils]: 67: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p4~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,692 INFO L280 TraceCheckUtils]: 68: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p5~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,692 INFO L280 TraceCheckUtils]: 69: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p6~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,693 INFO L280 TraceCheckUtils]: 70: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p7~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 05:09:48,693 INFO L280 TraceCheckUtils]: 71: Hoare triple {137200#(= 0 main_~p8~0)} assume 0 != ~p8~0; {137197#false} is VALID [2020-07-18 05:09:48,694 INFO L280 TraceCheckUtils]: 72: Hoare triple {137197#false} assume 1 != ~lk8~0; {137197#false} is VALID [2020-07-18 05:09:48,694 INFO L280 TraceCheckUtils]: 73: Hoare triple {137197#false} assume !false; {137197#false} is VALID [2020-07-18 05:09:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:09:48,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155677747] [2020-07-18 05:09:48,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:09:48,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:09:48,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596987197] [2020-07-18 05:09:48,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-18 05:09:48,699 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:09:48,699 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:09:48,769 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:09:48,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:09:48,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:09:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:09:48,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:09:48,770 INFO L87 Difference]: Start difference. First operand 6251 states and 7978 transitions. Second operand 3 states. [2020-07-18 05:10:40,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:10:40,417 INFO L93 Difference]: Finished difference Result 18287 states and 23340 transitions. [2020-07-18 05:10:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:10:40,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-18 05:10:40,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:10:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:10:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-18 05:10:40,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:10:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-18 05:10:40,421 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-18 05:10:40,665 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:10:46,126 INFO L225 Difference]: With dead ends: 18287 [2020-07-18 05:10:46,126 INFO L226 Difference]: Without dead ends: 12077 [2020-07-18 05:10:46,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:10:46,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12077 states. [2020-07-18 05:11:22,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12077 to 12075. [2020-07-18 05:11:22,751 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:11:22,751 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12077 states. Second operand 12075 states. [2020-07-18 05:11:22,751 INFO L74 IsIncluded]: Start isIncluded. First operand 12077 states. Second operand 12075 states. [2020-07-18 05:11:22,751 INFO L87 Difference]: Start difference. First operand 12077 states. Second operand 12075 states. [2020-07-18 05:11:26,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:11:26,964 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-18 05:11:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-18 05:11:26,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:11:26,977 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:11:26,978 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 12077 states. [2020-07-18 05:11:26,978 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 12077 states. [2020-07-18 05:11:31,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:11:31,251 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-18 05:11:31,251 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-18 05:11:31,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:11:31,260 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:11:31,260 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:11:31,260 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:11:31,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-18 05:11:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15146 transitions. [2020-07-18 05:11:36,516 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15146 transitions. Word has length 74 [2020-07-18 05:11:36,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:11:36,516 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15146 transitions. [2020-07-18 05:11:36,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:11:36,516 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15146 transitions. [2020-07-18 05:11:56,750 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15146 edges. 15146 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:11:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15146 transitions. [2020-07-18 05:11:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-18 05:11:56,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:11:56,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:11:56,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-18 05:11:56,755 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:11:56,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:11:56,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1143464253, now seen corresponding path program 1 times [2020-07-18 05:11:56,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:11:56,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74196200] [2020-07-18 05:11:56,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:11:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:11:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:11:56,792 INFO L280 TraceCheckUtils]: 0: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-18 05:11:56,792 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-18 05:11:56,793 INFO L263 TraceCheckUtils]: 0: Hoare triple {222081#true} call ULTIMATE.init(); {222081#true} is VALID [2020-07-18 05:11:56,793 INFO L280 TraceCheckUtils]: 1: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-18 05:11:56,793 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-18 05:11:56,794 INFO L263 TraceCheckUtils]: 3: Hoare triple {222081#true} call #t~ret10 := main(); {222081#true} is VALID [2020-07-18 05:11:56,794 INFO L280 TraceCheckUtils]: 4: Hoare triple {222081#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,794 INFO L280 TraceCheckUtils]: 5: Hoare triple {222081#true} ~p1~0 := #t~nondet0; {222081#true} is VALID [2020-07-18 05:11:56,794 INFO L280 TraceCheckUtils]: 6: Hoare triple {222081#true} havoc #t~nondet0; {222081#true} is VALID [2020-07-18 05:11:56,794 INFO L280 TraceCheckUtils]: 7: Hoare triple {222081#true} havoc ~lk1~0; {222081#true} is VALID [2020-07-18 05:11:56,795 INFO L280 TraceCheckUtils]: 8: Hoare triple {222081#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,795 INFO L280 TraceCheckUtils]: 9: Hoare triple {222081#true} ~p2~0 := #t~nondet1; {222081#true} is VALID [2020-07-18 05:11:56,795 INFO L280 TraceCheckUtils]: 10: Hoare triple {222081#true} havoc #t~nondet1; {222081#true} is VALID [2020-07-18 05:11:56,795 INFO L280 TraceCheckUtils]: 11: Hoare triple {222081#true} havoc ~lk2~0; {222081#true} is VALID [2020-07-18 05:11:56,795 INFO L280 TraceCheckUtils]: 12: Hoare triple {222081#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,795 INFO L280 TraceCheckUtils]: 13: Hoare triple {222081#true} ~p3~0 := #t~nondet2; {222081#true} is VALID [2020-07-18 05:11:56,796 INFO L280 TraceCheckUtils]: 14: Hoare triple {222081#true} havoc #t~nondet2; {222081#true} is VALID [2020-07-18 05:11:56,796 INFO L280 TraceCheckUtils]: 15: Hoare triple {222081#true} havoc ~lk3~0; {222081#true} is VALID [2020-07-18 05:11:56,796 INFO L280 TraceCheckUtils]: 16: Hoare triple {222081#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,796 INFO L280 TraceCheckUtils]: 17: Hoare triple {222081#true} ~p4~0 := #t~nondet3; {222081#true} is VALID [2020-07-18 05:11:56,796 INFO L280 TraceCheckUtils]: 18: Hoare triple {222081#true} havoc #t~nondet3; {222081#true} is VALID [2020-07-18 05:11:56,796 INFO L280 TraceCheckUtils]: 19: Hoare triple {222081#true} havoc ~lk4~0; {222081#true} is VALID [2020-07-18 05:11:56,797 INFO L280 TraceCheckUtils]: 20: Hoare triple {222081#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,797 INFO L280 TraceCheckUtils]: 21: Hoare triple {222081#true} ~p5~0 := #t~nondet4; {222081#true} is VALID [2020-07-18 05:11:56,797 INFO L280 TraceCheckUtils]: 22: Hoare triple {222081#true} havoc #t~nondet4; {222081#true} is VALID [2020-07-18 05:11:56,797 INFO L280 TraceCheckUtils]: 23: Hoare triple {222081#true} havoc ~lk5~0; {222081#true} is VALID [2020-07-18 05:11:56,797 INFO L280 TraceCheckUtils]: 24: Hoare triple {222081#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,797 INFO L280 TraceCheckUtils]: 25: Hoare triple {222081#true} ~p6~0 := #t~nondet5; {222081#true} is VALID [2020-07-18 05:11:56,798 INFO L280 TraceCheckUtils]: 26: Hoare triple {222081#true} havoc #t~nondet5; {222081#true} is VALID [2020-07-18 05:11:56,798 INFO L280 TraceCheckUtils]: 27: Hoare triple {222081#true} havoc ~lk6~0; {222081#true} is VALID [2020-07-18 05:11:56,798 INFO L280 TraceCheckUtils]: 28: Hoare triple {222081#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,798 INFO L280 TraceCheckUtils]: 29: Hoare triple {222081#true} ~p7~0 := #t~nondet6; {222081#true} is VALID [2020-07-18 05:11:56,798 INFO L280 TraceCheckUtils]: 30: Hoare triple {222081#true} havoc #t~nondet6; {222081#true} is VALID [2020-07-18 05:11:56,798 INFO L280 TraceCheckUtils]: 31: Hoare triple {222081#true} havoc ~lk7~0; {222081#true} is VALID [2020-07-18 05:11:56,799 INFO L280 TraceCheckUtils]: 32: Hoare triple {222081#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,799 INFO L280 TraceCheckUtils]: 33: Hoare triple {222081#true} ~p8~0 := #t~nondet7; {222081#true} is VALID [2020-07-18 05:11:56,799 INFO L280 TraceCheckUtils]: 34: Hoare triple {222081#true} havoc #t~nondet7; {222081#true} is VALID [2020-07-18 05:11:56,799 INFO L280 TraceCheckUtils]: 35: Hoare triple {222081#true} havoc ~lk8~0; {222081#true} is VALID [2020-07-18 05:11:56,800 INFO L280 TraceCheckUtils]: 36: Hoare triple {222081#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,800 INFO L280 TraceCheckUtils]: 37: Hoare triple {222081#true} ~p9~0 := #t~nondet8; {222081#true} is VALID [2020-07-18 05:11:56,800 INFO L280 TraceCheckUtils]: 38: Hoare triple {222081#true} havoc #t~nondet8; {222081#true} is VALID [2020-07-18 05:11:56,800 INFO L280 TraceCheckUtils]: 39: Hoare triple {222081#true} havoc ~lk9~0; {222081#true} is VALID [2020-07-18 05:11:56,800 INFO L280 TraceCheckUtils]: 40: Hoare triple {222081#true} havoc ~cond~0; {222081#true} is VALID [2020-07-18 05:11:56,801 INFO L280 TraceCheckUtils]: 41: Hoare triple {222081#true} assume !false; {222081#true} is VALID [2020-07-18 05:11:56,801 INFO L280 TraceCheckUtils]: 42: Hoare triple {222081#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {222081#true} is VALID [2020-07-18 05:11:56,801 INFO L280 TraceCheckUtils]: 43: Hoare triple {222081#true} ~cond~0 := #t~nondet9; {222081#true} is VALID [2020-07-18 05:11:56,801 INFO L280 TraceCheckUtils]: 44: Hoare triple {222081#true} havoc #t~nondet9; {222081#true} is VALID [2020-07-18 05:11:56,802 INFO L280 TraceCheckUtils]: 45: Hoare triple {222081#true} assume !(0 == ~cond~0); {222081#true} is VALID [2020-07-18 05:11:56,802 INFO L280 TraceCheckUtils]: 46: Hoare triple {222081#true} ~lk1~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,802 INFO L280 TraceCheckUtils]: 47: Hoare triple {222081#true} ~lk2~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,802 INFO L280 TraceCheckUtils]: 48: Hoare triple {222081#true} ~lk3~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,803 INFO L280 TraceCheckUtils]: 49: Hoare triple {222081#true} ~lk4~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,803 INFO L280 TraceCheckUtils]: 50: Hoare triple {222081#true} ~lk5~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,803 INFO L280 TraceCheckUtils]: 51: Hoare triple {222081#true} ~lk6~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,803 INFO L280 TraceCheckUtils]: 52: Hoare triple {222081#true} ~lk7~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,804 INFO L280 TraceCheckUtils]: 53: Hoare triple {222081#true} ~lk8~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,804 INFO L280 TraceCheckUtils]: 54: Hoare triple {222081#true} ~lk9~0 := 0; {222081#true} is VALID [2020-07-18 05:11:56,804 INFO L280 TraceCheckUtils]: 55: Hoare triple {222081#true} assume !(0 != ~p1~0); {222081#true} is VALID [2020-07-18 05:11:56,804 INFO L280 TraceCheckUtils]: 56: Hoare triple {222081#true} assume !(0 != ~p2~0); {222081#true} is VALID [2020-07-18 05:11:56,805 INFO L280 TraceCheckUtils]: 57: Hoare triple {222081#true} assume !(0 != ~p3~0); {222081#true} is VALID [2020-07-18 05:11:56,805 INFO L280 TraceCheckUtils]: 58: Hoare triple {222081#true} assume !(0 != ~p4~0); {222081#true} is VALID [2020-07-18 05:11:56,805 INFO L280 TraceCheckUtils]: 59: Hoare triple {222081#true} assume !(0 != ~p5~0); {222081#true} is VALID [2020-07-18 05:11:56,805 INFO L280 TraceCheckUtils]: 60: Hoare triple {222081#true} assume !(0 != ~p6~0); {222081#true} is VALID [2020-07-18 05:11:56,806 INFO L280 TraceCheckUtils]: 61: Hoare triple {222081#true} assume 0 != ~p7~0; {222081#true} is VALID [2020-07-18 05:11:56,806 INFO L280 TraceCheckUtils]: 62: Hoare triple {222081#true} ~lk7~0 := 1; {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,807 INFO L280 TraceCheckUtils]: 63: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p8~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,808 INFO L280 TraceCheckUtils]: 64: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p9~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,808 INFO L280 TraceCheckUtils]: 65: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p1~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,809 INFO L280 TraceCheckUtils]: 66: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p2~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,809 INFO L280 TraceCheckUtils]: 67: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p3~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,810 INFO L280 TraceCheckUtils]: 68: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p4~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,811 INFO L280 TraceCheckUtils]: 69: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p5~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,811 INFO L280 TraceCheckUtils]: 70: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p6~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,812 INFO L280 TraceCheckUtils]: 71: Hoare triple {222085#(= main_~lk7~0 1)} assume 0 != ~p7~0; {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 05:11:56,813 INFO L280 TraceCheckUtils]: 72: Hoare triple {222085#(= main_~lk7~0 1)} assume 1 != ~lk7~0; {222082#false} is VALID [2020-07-18 05:11:56,813 INFO L280 TraceCheckUtils]: 73: Hoare triple {222082#false} assume !false; {222082#false} is VALID [2020-07-18 05:11:56,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:11:56,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74196200] [2020-07-18 05:11:56,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:11:56,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:11:56,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922320314] [2020-07-18 05:11:56,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-18 05:11:56,819 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:11:56,819 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:11:56,895 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:11:56,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:11:56,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:11:56,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:11:56,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:11:56,896 INFO L87 Difference]: Start difference. First operand 12075 states and 15146 transitions. Second operand 3 states. [2020-07-18 05:12:55,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:12:55,070 INFO L93 Difference]: Finished difference Result 14255 states and 17708 transitions. [2020-07-18 05:12:55,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:12:55,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-18 05:12:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:12:55,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:12:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-18 05:12:55,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:12:55,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-18 05:12:55,073 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 177 transitions. [2020-07-18 05:12:55,227 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 177 edges. 177 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:13:02,759 INFO L225 Difference]: With dead ends: 14255 [2020-07-18 05:13:02,760 INFO L226 Difference]: Without dead ends: 14253 [2020-07-18 05:13:02,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:13:02,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14253 states. [2020-07-18 05:13:43,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14253 to 12075. [2020-07-18 05:13:43,897 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:13:43,897 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14253 states. Second operand 12075 states. [2020-07-18 05:13:43,897 INFO L74 IsIncluded]: Start isIncluded. First operand 14253 states. Second operand 12075 states. [2020-07-18 05:13:43,897 INFO L87 Difference]: Start difference. First operand 14253 states. Second operand 12075 states. [2020-07-18 05:13:50,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:13:50,508 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-18 05:13:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-18 05:13:50,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:13:50,517 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:13:50,517 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14253 states. [2020-07-18 05:13:50,517 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14253 states. [2020-07-18 05:13:58,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:13:58,357 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-18 05:13:58,357 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-18 05:13:58,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:13:58,367 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:13:58,368 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:13:58,368 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:13:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-18 05:14:03,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15018 transitions. [2020-07-18 05:14:03,354 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15018 transitions. Word has length 74 [2020-07-18 05:14:03,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:14:03,355 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15018 transitions. [2020-07-18 05:14:03,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:14:03,355 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15018 transitions. [2020-07-18 05:14:24,422 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15018 edges. 15018 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:14:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15018 transitions. [2020-07-18 05:14:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-18 05:14:24,427 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:14:24,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:14:24,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-18 05:14:24,427 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:14:24,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:14:24,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1847607922, now seen corresponding path program 1 times [2020-07-18 05:14:24,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:14:24,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407865919] [2020-07-18 05:14:24,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:14:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:14:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:14:24,472 INFO L280 TraceCheckUtils]: 0: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-18 05:14:24,472 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-18 05:14:24,472 INFO L263 TraceCheckUtils]: 0: Hoare triple {303254#true} call ULTIMATE.init(); {303254#true} is VALID [2020-07-18 05:14:24,472 INFO L280 TraceCheckUtils]: 1: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-18 05:14:24,472 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-18 05:14:24,472 INFO L263 TraceCheckUtils]: 3: Hoare triple {303254#true} call #t~ret10 := main(); {303254#true} is VALID [2020-07-18 05:14:24,473 INFO L280 TraceCheckUtils]: 4: Hoare triple {303254#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,473 INFO L280 TraceCheckUtils]: 5: Hoare triple {303254#true} ~p1~0 := #t~nondet0; {303254#true} is VALID [2020-07-18 05:14:24,473 INFO L280 TraceCheckUtils]: 6: Hoare triple {303254#true} havoc #t~nondet0; {303254#true} is VALID [2020-07-18 05:14:24,473 INFO L280 TraceCheckUtils]: 7: Hoare triple {303254#true} havoc ~lk1~0; {303254#true} is VALID [2020-07-18 05:14:24,473 INFO L280 TraceCheckUtils]: 8: Hoare triple {303254#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,473 INFO L280 TraceCheckUtils]: 9: Hoare triple {303254#true} ~p2~0 := #t~nondet1; {303254#true} is VALID [2020-07-18 05:14:24,473 INFO L280 TraceCheckUtils]: 10: Hoare triple {303254#true} havoc #t~nondet1; {303254#true} is VALID [2020-07-18 05:14:24,473 INFO L280 TraceCheckUtils]: 11: Hoare triple {303254#true} havoc ~lk2~0; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 12: Hoare triple {303254#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 13: Hoare triple {303254#true} ~p3~0 := #t~nondet2; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 14: Hoare triple {303254#true} havoc #t~nondet2; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 15: Hoare triple {303254#true} havoc ~lk3~0; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 16: Hoare triple {303254#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 17: Hoare triple {303254#true} ~p4~0 := #t~nondet3; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 18: Hoare triple {303254#true} havoc #t~nondet3; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 19: Hoare triple {303254#true} havoc ~lk4~0; {303254#true} is VALID [2020-07-18 05:14:24,474 INFO L280 TraceCheckUtils]: 20: Hoare triple {303254#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,475 INFO L280 TraceCheckUtils]: 21: Hoare triple {303254#true} ~p5~0 := #t~nondet4; {303254#true} is VALID [2020-07-18 05:14:24,475 INFO L280 TraceCheckUtils]: 22: Hoare triple {303254#true} havoc #t~nondet4; {303254#true} is VALID [2020-07-18 05:14:24,475 INFO L280 TraceCheckUtils]: 23: Hoare triple {303254#true} havoc ~lk5~0; {303254#true} is VALID [2020-07-18 05:14:24,475 INFO L280 TraceCheckUtils]: 24: Hoare triple {303254#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,475 INFO L280 TraceCheckUtils]: 25: Hoare triple {303254#true} ~p6~0 := #t~nondet5; {303254#true} is VALID [2020-07-18 05:14:24,475 INFO L280 TraceCheckUtils]: 26: Hoare triple {303254#true} havoc #t~nondet5; {303254#true} is VALID [2020-07-18 05:14:24,476 INFO L280 TraceCheckUtils]: 27: Hoare triple {303254#true} havoc ~lk6~0; {303254#true} is VALID [2020-07-18 05:14:24,476 INFO L280 TraceCheckUtils]: 28: Hoare triple {303254#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,476 INFO L280 TraceCheckUtils]: 29: Hoare triple {303254#true} ~p7~0 := #t~nondet6; {303254#true} is VALID [2020-07-18 05:14:24,476 INFO L280 TraceCheckUtils]: 30: Hoare triple {303254#true} havoc #t~nondet6; {303254#true} is VALID [2020-07-18 05:14:24,476 INFO L280 TraceCheckUtils]: 31: Hoare triple {303254#true} havoc ~lk7~0; {303254#true} is VALID [2020-07-18 05:14:24,476 INFO L280 TraceCheckUtils]: 32: Hoare triple {303254#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,477 INFO L280 TraceCheckUtils]: 33: Hoare triple {303254#true} ~p8~0 := #t~nondet7; {303254#true} is VALID [2020-07-18 05:14:24,477 INFO L280 TraceCheckUtils]: 34: Hoare triple {303254#true} havoc #t~nondet7; {303254#true} is VALID [2020-07-18 05:14:24,477 INFO L280 TraceCheckUtils]: 35: Hoare triple {303254#true} havoc ~lk8~0; {303254#true} is VALID [2020-07-18 05:14:24,477 INFO L280 TraceCheckUtils]: 36: Hoare triple {303254#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,477 INFO L280 TraceCheckUtils]: 37: Hoare triple {303254#true} ~p9~0 := #t~nondet8; {303254#true} is VALID [2020-07-18 05:14:24,477 INFO L280 TraceCheckUtils]: 38: Hoare triple {303254#true} havoc #t~nondet8; {303254#true} is VALID [2020-07-18 05:14:24,478 INFO L280 TraceCheckUtils]: 39: Hoare triple {303254#true} havoc ~lk9~0; {303254#true} is VALID [2020-07-18 05:14:24,478 INFO L280 TraceCheckUtils]: 40: Hoare triple {303254#true} havoc ~cond~0; {303254#true} is VALID [2020-07-18 05:14:24,478 INFO L280 TraceCheckUtils]: 41: Hoare triple {303254#true} assume !false; {303254#true} is VALID [2020-07-18 05:14:24,478 INFO L280 TraceCheckUtils]: 42: Hoare triple {303254#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {303254#true} is VALID [2020-07-18 05:14:24,478 INFO L280 TraceCheckUtils]: 43: Hoare triple {303254#true} ~cond~0 := #t~nondet9; {303254#true} is VALID [2020-07-18 05:14:24,478 INFO L280 TraceCheckUtils]: 44: Hoare triple {303254#true} havoc #t~nondet9; {303254#true} is VALID [2020-07-18 05:14:24,479 INFO L280 TraceCheckUtils]: 45: Hoare triple {303254#true} assume !(0 == ~cond~0); {303254#true} is VALID [2020-07-18 05:14:24,479 INFO L280 TraceCheckUtils]: 46: Hoare triple {303254#true} ~lk1~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,479 INFO L280 TraceCheckUtils]: 47: Hoare triple {303254#true} ~lk2~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,479 INFO L280 TraceCheckUtils]: 48: Hoare triple {303254#true} ~lk3~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,479 INFO L280 TraceCheckUtils]: 49: Hoare triple {303254#true} ~lk4~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,479 INFO L280 TraceCheckUtils]: 50: Hoare triple {303254#true} ~lk5~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,480 INFO L280 TraceCheckUtils]: 51: Hoare triple {303254#true} ~lk6~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,480 INFO L280 TraceCheckUtils]: 52: Hoare triple {303254#true} ~lk7~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,480 INFO L280 TraceCheckUtils]: 53: Hoare triple {303254#true} ~lk8~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,480 INFO L280 TraceCheckUtils]: 54: Hoare triple {303254#true} ~lk9~0 := 0; {303254#true} is VALID [2020-07-18 05:14:24,480 INFO L280 TraceCheckUtils]: 55: Hoare triple {303254#true} assume !(0 != ~p1~0); {303254#true} is VALID [2020-07-18 05:14:24,480 INFO L280 TraceCheckUtils]: 56: Hoare triple {303254#true} assume !(0 != ~p2~0); {303254#true} is VALID [2020-07-18 05:14:24,481 INFO L280 TraceCheckUtils]: 57: Hoare triple {303254#true} assume !(0 != ~p3~0); {303254#true} is VALID [2020-07-18 05:14:24,481 INFO L280 TraceCheckUtils]: 58: Hoare triple {303254#true} assume !(0 != ~p4~0); {303254#true} is VALID [2020-07-18 05:14:24,481 INFO L280 TraceCheckUtils]: 59: Hoare triple {303254#true} assume !(0 != ~p5~0); {303254#true} is VALID [2020-07-18 05:14:24,481 INFO L280 TraceCheckUtils]: 60: Hoare triple {303254#true} assume !(0 != ~p6~0); {303254#true} is VALID [2020-07-18 05:14:24,481 INFO L280 TraceCheckUtils]: 61: Hoare triple {303254#true} assume !(0 != ~p7~0); {303254#true} is VALID [2020-07-18 05:14:24,481 INFO L280 TraceCheckUtils]: 62: Hoare triple {303254#true} assume 0 != ~p8~0; {303254#true} is VALID [2020-07-18 05:14:24,482 INFO L280 TraceCheckUtils]: 63: Hoare triple {303254#true} ~lk8~0 := 1; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,483 INFO L280 TraceCheckUtils]: 64: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p9~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,483 INFO L280 TraceCheckUtils]: 65: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p1~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,483 INFO L280 TraceCheckUtils]: 66: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p2~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,484 INFO L280 TraceCheckUtils]: 67: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p3~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,484 INFO L280 TraceCheckUtils]: 68: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p4~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,485 INFO L280 TraceCheckUtils]: 69: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p5~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,485 INFO L280 TraceCheckUtils]: 70: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p6~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,486 INFO L280 TraceCheckUtils]: 71: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p7~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,486 INFO L280 TraceCheckUtils]: 72: Hoare triple {303258#(= 1 main_~lk8~0)} assume 0 != ~p8~0; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 05:14:24,487 INFO L280 TraceCheckUtils]: 73: Hoare triple {303258#(= 1 main_~lk8~0)} assume 1 != ~lk8~0; {303255#false} is VALID [2020-07-18 05:14:24,487 INFO L280 TraceCheckUtils]: 74: Hoare triple {303255#false} assume !false; {303255#false} is VALID [2020-07-18 05:14:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:14:24,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407865919] [2020-07-18 05:14:24,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:14:24,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:14:24,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079504975] [2020-07-18 05:14:24,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-18 05:14:24,491 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:14:24,492 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:14:24,552 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:14:24,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:14:24,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:14:24,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:14:24,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:14:24,553 INFO L87 Difference]: Start difference. First operand 12075 states and 15018 transitions. Second operand 3 states. [2020-07-18 05:15:22,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:15:22,369 INFO L93 Difference]: Finished difference Result 14127 states and 17324 transitions. [2020-07-18 05:15:22,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:15:22,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-18 05:15:22,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:15:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:15:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-18 05:15:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:15:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-18 05:15:22,372 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 173 transitions. [2020-07-18 05:15:22,533 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:15:30,933 INFO L225 Difference]: With dead ends: 14127 [2020-07-18 05:15:30,933 INFO L226 Difference]: Without dead ends: 14125 [2020-07-18 05:15:30,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:15:30,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14125 states. [2020-07-18 05:16:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14125 to 12075. [2020-07-18 05:16:18,482 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:16:18,483 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14125 states. Second operand 12075 states. [2020-07-18 05:16:18,483 INFO L74 IsIncluded]: Start isIncluded. First operand 14125 states. Second operand 12075 states. [2020-07-18 05:16:18,483 INFO L87 Difference]: Start difference. First operand 14125 states. Second operand 12075 states. [2020-07-18 05:16:25,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:16:25,095 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-18 05:16:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-18 05:16:25,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:16:25,108 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:16:25,108 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14125 states. [2020-07-18 05:16:25,108 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14125 states. [2020-07-18 05:16:32,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:16:32,244 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-18 05:16:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-18 05:16:32,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:16:32,254 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:16:32,254 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:16:32,254 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:16:32,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-18 05:16:37,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14890 transitions. [2020-07-18 05:16:37,489 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14890 transitions. Word has length 75 [2020-07-18 05:16:37,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:16:37,490 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14890 transitions. [2020-07-18 05:16:37,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:16:37,490 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 14890 transitions. [2020-07-18 05:16:58,734 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14890 edges. 14890 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:16:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14890 transitions. [2020-07-18 05:16:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-18 05:16:58,739 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:16:58,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:16:58,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-18 05:16:58,740 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:16:58,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:16:58,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1321782988, now seen corresponding path program 1 times [2020-07-18 05:16:58,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:16:58,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114648648] [2020-07-18 05:16:58,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:16:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:16:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:16:58,776 INFO L280 TraceCheckUtils]: 0: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-18 05:16:58,777 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-18 05:16:58,777 INFO L263 TraceCheckUtils]: 0: Hoare triple {383915#true} call ULTIMATE.init(); {383915#true} is VALID [2020-07-18 05:16:58,777 INFO L280 TraceCheckUtils]: 1: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-18 05:16:58,777 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-18 05:16:58,777 INFO L263 TraceCheckUtils]: 3: Hoare triple {383915#true} call #t~ret10 := main(); {383915#true} is VALID [2020-07-18 05:16:58,778 INFO L280 TraceCheckUtils]: 4: Hoare triple {383915#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,778 INFO L280 TraceCheckUtils]: 5: Hoare triple {383915#true} ~p1~0 := #t~nondet0; {383915#true} is VALID [2020-07-18 05:16:58,778 INFO L280 TraceCheckUtils]: 6: Hoare triple {383915#true} havoc #t~nondet0; {383915#true} is VALID [2020-07-18 05:16:58,778 INFO L280 TraceCheckUtils]: 7: Hoare triple {383915#true} havoc ~lk1~0; {383915#true} is VALID [2020-07-18 05:16:58,778 INFO L280 TraceCheckUtils]: 8: Hoare triple {383915#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,779 INFO L280 TraceCheckUtils]: 9: Hoare triple {383915#true} ~p2~0 := #t~nondet1; {383915#true} is VALID [2020-07-18 05:16:58,779 INFO L280 TraceCheckUtils]: 10: Hoare triple {383915#true} havoc #t~nondet1; {383915#true} is VALID [2020-07-18 05:16:58,779 INFO L280 TraceCheckUtils]: 11: Hoare triple {383915#true} havoc ~lk2~0; {383915#true} is VALID [2020-07-18 05:16:58,779 INFO L280 TraceCheckUtils]: 12: Hoare triple {383915#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,779 INFO L280 TraceCheckUtils]: 13: Hoare triple {383915#true} ~p3~0 := #t~nondet2; {383915#true} is VALID [2020-07-18 05:16:58,780 INFO L280 TraceCheckUtils]: 14: Hoare triple {383915#true} havoc #t~nondet2; {383915#true} is VALID [2020-07-18 05:16:58,780 INFO L280 TraceCheckUtils]: 15: Hoare triple {383915#true} havoc ~lk3~0; {383915#true} is VALID [2020-07-18 05:16:58,780 INFO L280 TraceCheckUtils]: 16: Hoare triple {383915#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,780 INFO L280 TraceCheckUtils]: 17: Hoare triple {383915#true} ~p4~0 := #t~nondet3; {383915#true} is VALID [2020-07-18 05:16:58,780 INFO L280 TraceCheckUtils]: 18: Hoare triple {383915#true} havoc #t~nondet3; {383915#true} is VALID [2020-07-18 05:16:58,780 INFO L280 TraceCheckUtils]: 19: Hoare triple {383915#true} havoc ~lk4~0; {383915#true} is VALID [2020-07-18 05:16:58,781 INFO L280 TraceCheckUtils]: 20: Hoare triple {383915#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,781 INFO L280 TraceCheckUtils]: 21: Hoare triple {383915#true} ~p5~0 := #t~nondet4; {383915#true} is VALID [2020-07-18 05:16:58,781 INFO L280 TraceCheckUtils]: 22: Hoare triple {383915#true} havoc #t~nondet4; {383915#true} is VALID [2020-07-18 05:16:58,781 INFO L280 TraceCheckUtils]: 23: Hoare triple {383915#true} havoc ~lk5~0; {383915#true} is VALID [2020-07-18 05:16:58,781 INFO L280 TraceCheckUtils]: 24: Hoare triple {383915#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,782 INFO L280 TraceCheckUtils]: 25: Hoare triple {383915#true} ~p6~0 := #t~nondet5; {383915#true} is VALID [2020-07-18 05:16:58,782 INFO L280 TraceCheckUtils]: 26: Hoare triple {383915#true} havoc #t~nondet5; {383915#true} is VALID [2020-07-18 05:16:58,782 INFO L280 TraceCheckUtils]: 27: Hoare triple {383915#true} havoc ~lk6~0; {383915#true} is VALID [2020-07-18 05:16:58,782 INFO L280 TraceCheckUtils]: 28: Hoare triple {383915#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,782 INFO L280 TraceCheckUtils]: 29: Hoare triple {383915#true} ~p7~0 := #t~nondet6; {383915#true} is VALID [2020-07-18 05:16:58,782 INFO L280 TraceCheckUtils]: 30: Hoare triple {383915#true} havoc #t~nondet6; {383915#true} is VALID [2020-07-18 05:16:58,783 INFO L280 TraceCheckUtils]: 31: Hoare triple {383915#true} havoc ~lk7~0; {383915#true} is VALID [2020-07-18 05:16:58,783 INFO L280 TraceCheckUtils]: 32: Hoare triple {383915#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,783 INFO L280 TraceCheckUtils]: 33: Hoare triple {383915#true} ~p8~0 := #t~nondet7; {383915#true} is VALID [2020-07-18 05:16:58,783 INFO L280 TraceCheckUtils]: 34: Hoare triple {383915#true} havoc #t~nondet7; {383915#true} is VALID [2020-07-18 05:16:58,783 INFO L280 TraceCheckUtils]: 35: Hoare triple {383915#true} havoc ~lk8~0; {383915#true} is VALID [2020-07-18 05:16:58,784 INFO L280 TraceCheckUtils]: 36: Hoare triple {383915#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,784 INFO L280 TraceCheckUtils]: 37: Hoare triple {383915#true} ~p9~0 := #t~nondet8; {383915#true} is VALID [2020-07-18 05:16:58,784 INFO L280 TraceCheckUtils]: 38: Hoare triple {383915#true} havoc #t~nondet8; {383915#true} is VALID [2020-07-18 05:16:58,784 INFO L280 TraceCheckUtils]: 39: Hoare triple {383915#true} havoc ~lk9~0; {383915#true} is VALID [2020-07-18 05:16:58,784 INFO L280 TraceCheckUtils]: 40: Hoare triple {383915#true} havoc ~cond~0; {383915#true} is VALID [2020-07-18 05:16:58,785 INFO L280 TraceCheckUtils]: 41: Hoare triple {383915#true} assume !false; {383915#true} is VALID [2020-07-18 05:16:58,785 INFO L280 TraceCheckUtils]: 42: Hoare triple {383915#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {383915#true} is VALID [2020-07-18 05:16:58,785 INFO L280 TraceCheckUtils]: 43: Hoare triple {383915#true} ~cond~0 := #t~nondet9; {383915#true} is VALID [2020-07-18 05:16:58,785 INFO L280 TraceCheckUtils]: 44: Hoare triple {383915#true} havoc #t~nondet9; {383915#true} is VALID [2020-07-18 05:16:58,785 INFO L280 TraceCheckUtils]: 45: Hoare triple {383915#true} assume !(0 == ~cond~0); {383915#true} is VALID [2020-07-18 05:16:58,785 INFO L280 TraceCheckUtils]: 46: Hoare triple {383915#true} ~lk1~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,786 INFO L280 TraceCheckUtils]: 47: Hoare triple {383915#true} ~lk2~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,786 INFO L280 TraceCheckUtils]: 48: Hoare triple {383915#true} ~lk3~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,786 INFO L280 TraceCheckUtils]: 49: Hoare triple {383915#true} ~lk4~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,786 INFO L280 TraceCheckUtils]: 50: Hoare triple {383915#true} ~lk5~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,786 INFO L280 TraceCheckUtils]: 51: Hoare triple {383915#true} ~lk6~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,787 INFO L280 TraceCheckUtils]: 52: Hoare triple {383915#true} ~lk7~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,787 INFO L280 TraceCheckUtils]: 53: Hoare triple {383915#true} ~lk8~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,787 INFO L280 TraceCheckUtils]: 54: Hoare triple {383915#true} ~lk9~0 := 0; {383915#true} is VALID [2020-07-18 05:16:58,787 INFO L280 TraceCheckUtils]: 55: Hoare triple {383915#true} assume !(0 != ~p1~0); {383915#true} is VALID [2020-07-18 05:16:58,787 INFO L280 TraceCheckUtils]: 56: Hoare triple {383915#true} assume !(0 != ~p2~0); {383915#true} is VALID [2020-07-18 05:16:58,787 INFO L280 TraceCheckUtils]: 57: Hoare triple {383915#true} assume !(0 != ~p3~0); {383915#true} is VALID [2020-07-18 05:16:58,788 INFO L280 TraceCheckUtils]: 58: Hoare triple {383915#true} assume !(0 != ~p4~0); {383915#true} is VALID [2020-07-18 05:16:58,788 INFO L280 TraceCheckUtils]: 59: Hoare triple {383915#true} assume !(0 != ~p5~0); {383915#true} is VALID [2020-07-18 05:16:58,788 INFO L280 TraceCheckUtils]: 60: Hoare triple {383915#true} assume !(0 != ~p6~0); {383915#true} is VALID [2020-07-18 05:16:58,788 INFO L280 TraceCheckUtils]: 61: Hoare triple {383915#true} assume !(0 != ~p7~0); {383915#true} is VALID [2020-07-18 05:16:58,788 INFO L280 TraceCheckUtils]: 62: Hoare triple {383915#true} assume !(0 != ~p8~0); {383915#true} is VALID [2020-07-18 05:16:58,789 INFO L280 TraceCheckUtils]: 63: Hoare triple {383915#true} assume !(0 != ~p9~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,790 INFO L280 TraceCheckUtils]: 64: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p1~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,790 INFO L280 TraceCheckUtils]: 65: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p2~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,790 INFO L280 TraceCheckUtils]: 66: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p3~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,791 INFO L280 TraceCheckUtils]: 67: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p4~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,791 INFO L280 TraceCheckUtils]: 68: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p5~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,792 INFO L280 TraceCheckUtils]: 69: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p6~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,792 INFO L280 TraceCheckUtils]: 70: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p7~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,793 INFO L280 TraceCheckUtils]: 71: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p8~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 05:16:58,793 INFO L280 TraceCheckUtils]: 72: Hoare triple {383919#(= 0 main_~p9~0)} assume 0 != ~p9~0; {383916#false} is VALID [2020-07-18 05:16:58,794 INFO L280 TraceCheckUtils]: 73: Hoare triple {383916#false} assume 1 != ~lk9~0; {383916#false} is VALID [2020-07-18 05:16:58,794 INFO L280 TraceCheckUtils]: 74: Hoare triple {383916#false} assume !false; {383916#false} is VALID [2020-07-18 05:16:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:16:58,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114648648] [2020-07-18 05:16:58,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:16:58,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:16:58,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657407594] [2020-07-18 05:16:58,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-18 05:16:58,799 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:16:58,799 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:16:58,854 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:16:58,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:16:58,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:16:58,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:16:58,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:16:58,855 INFO L87 Difference]: Start difference. First operand 12075 states and 14890 transitions. Second operand 3 states.